101212100120 has 32 divisors (see below), whose sum is σ = 231126145200. Its totient is φ = 39880587648.

The previous prime is 101212100089. The next prime is 101212100183. The reversal of 101212100120 is 21001212101.

It is a congruent number.

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, 18880175 + ... + 18885534.

Almost surely, 2^101212100120 is an apocalyptic number.

101212100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212100120 is an abundant number, since it is smaller than the sum of its proper divisors (129914045080).

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

101212100120 is a wasteful number, since it uses less digits than its factorization.

101212100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37765787 (or 37765783 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101212100120 its reverse (21001212101), we get a palindrome (122213312221).

The spelling of 101212100120 in words is "one hundred one billion, two hundred twelve million, one hundred thousand, one hundred twenty".