1210012112100 has 108 divisors (see below), whose sum is σ = 3848171968592. Its totient is φ = 293336260800.

The previous prime is 1210012112063. The next prime is 1210012112117. The reversal of 1210012112100 is 12112100121.

It is a super-2 number, since 2×1210012112100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16630534 + ... + 16703133.

Almost surely, 2^{1210012112100} is an apocalyptic number.

1210012112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210012112100 is an abundant number, since it is smaller than the sum of its proper divisors (2638159856492).

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

1210012112100 is a wasteful number, since it uses less digits than its factorization.

1210012112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333706 (or 33333688 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210012112100 its reverse (12112100121), we get a palindrome (1222124212221).

The spelling of 1210012112100 in words is "one trillion, two hundred ten billion, twelve million, one hundred twelve thousand, one hundred".