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122002101020 = 2256100105051
BaseRepresentation
bin111000110011111100…
…1000101001100011100
3102122220112110212210002
41301213321011030130
53444330014213040
6132014052233432
711546216514422
oct1614771051434
9378815425702
10122002101020
1147817007268
121b78a30b878
13b673c18b27
145c951cb112
153290b30a15
hex1c67e4531c

122002101020 has 12 divisors (see below), whose sum is σ = 256204412184. Its totient is φ = 48800840400.

The previous prime is 122002101007. The next prime is 122002101059. The reversal of 122002101020 is 20101200221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122002100992 and 122002101010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3050052506 + ... + 3050052545.

It is an arithmetic number, because the mean of its divisors is an integer number (21350367682).

Almost surely, 2122002101020 is an apocalyptic number.

122002101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122002101020 is an abundant number, since it is smaller than the sum of its proper divisors (134202311164).

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

122002101020 is a wasteful number, since it uses less digits than its factorization.

122002101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100105060 (or 6100105058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122002101020 its reverse (20101200221), we get a palindrome (142103301241).

The spelling of 122002101020 in words is "one hundred twenty-two billion, two million, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 6100105051 12200210102 24400420204 30500525255 61001050510 122002101020