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122013200000 = 2755305033
BaseRepresentation
bin111000110100010001…
…1011010111010000000
3102122221022100202201102
41301220203122322000
53444340334400000
6132015130153532
711546413042106
oct1615043327200
9378838322642
10122013200000
11478222a807a
121b791b828a8
13b676303983
145c96879c76
153291ac43d5
hex1c688dae80

122013200000 has 96 divisors (see below), whose sum is σ = 303823015020. Its totient is φ = 48805120000.

The previous prime is 122013199993. The next prime is 122013200009. The reversal of 122013200000 is 2310221.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 37397371456 + 84615828544 = 193384^2 + 290888^2 .

It is not an unprimeable number, because it can be changed into a prime (122013200009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247484 + ... + 552516.

Almost surely, 2122013200000 is an apocalyptic number.

122013200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122013200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151911507510).

122013200000 is an abundant number, since it is smaller than the sum of its proper divisors (181809815020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122013200000 is an frugal number, since it uses more digits than its factorization.

122013200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305072 (or 305040 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 122013200000 its reverse (2310221), we get a palindrome (122015510221).

The spelling of 122013200000 in words is "one hundred twenty-two billion, thirteen million, two hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1250 1600 2000 2500 3125 3200 4000 5000 6250 8000 10000 12500 16000 20000 25000 40000 50000 80000 100000 200000 305033 400000 610066 1220132 1525165 2440264 3050330 4880528 6100660 7625825 9761056 12201320 15251650 19522112 24402640 30503300 38129125 39044224 48805280 61006600 76258250 97610560 122013200 152516500 190645625 195221120 244026400 305033000 381291250 488052800 610066000 762582500 953228125 976105600 1220132000 1525165000 1906456250 2440264000 3050330000 3812912500 4880528000 6100660000 7625825000 12201320000 15251650000 24402640000 30503300000 61006600000 122013200000