101202002120 has 32 divisors (see below), whose sum is σ = 228649358520. Its totient is φ = 40312826880.

The previous prime is 101202002117. The next prime is 101202002131. The reversal of 101202002120 is 21200202101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84414653764 + 16787348356 = 290542^2 + 129566^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5239427 + ... + 5258706.

Almost surely, 2^101202002120 is an apocalyptic number.

101202002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101202002120 is an abundant number, since it is smaller than the sum of its proper divisors (127447356400).

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

101202002120 is a wasteful number, since it uses less digits than its factorization.

101202002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10498385 (or 10498381 counting only the distinct ones).

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

Adding to 101202002120 its reverse (21200202101), we get a palindrome (122402204221).

The spelling of 101202002120 in words is "one hundred one billion, two hundred two million, two thousand, one hundred twenty".