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122202021030 = 2355385789681
BaseRepresentation
bin111000111001111001…
…1101101110010100110
3102200102110122212110220
41301303303231302212
54000232204133110
6132045553225210
711554165016535
oct1616363556246
9380373585426
10122202021030
1147909945111
121b825262206
13b6a64758ab
145cb398c31c
1532a3471370
hex1c73cedca6

122202021030 has 64 divisors (see below), whose sum is σ = 299170542528. Its totient is φ = 31934689280.

The previous prime is 122202020999. The next prime is 122202021037. The reversal of 122202021030 is 30120202221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122202021037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1317790 + ... + 1407470.

It is an arithmetic number, because the mean of its divisors is an integer number (4674539727).

Almost surely, 2122202021030 is an apocalyptic number.

122202021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122202021030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149585271264).

122202021030 is an abundant number, since it is smaller than the sum of its proper divisors (176968521498).

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

122202021030 is a wasteful number, since it uses less digits than its factorization.

122202021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90601.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 122202021030 its reverse (30120202221), we get a palindrome (152322223251).

The spelling of 122202021030 in words is "one hundred twenty-two billion, two hundred two million, twenty-one thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 857 1590 1714 2571 4285 5142 8570 12855 25710 45421 89681 90842 136263 179362 227105 269043 272526 448405 454210 538086 681315 896810 1345215 1362630 2690430 4753093 9506186 14259279 23765465 28518558 47530930 71296395 76856617 142592790 153713234 230569851 384283085 461139702 768566170 1152849255 2305698510 4073400701 8146801402 12220202103 20367003505 24440404206 40734007010 61101010515 122202021030