101212121201200 has 30 divisors (see below), whose sum is σ = 243162121186844. Its totient is φ = 40484848480320.

The previous prime is 101212121201159. The next prime is 101212121201203. The reversal of 101212121201200 is 2102121212101.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (101212121201203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126515151102 + ... + 126515151901.

Almost surely, 2^{101212121201200} is an apocalyptic number.

101212121201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212121201200 is an abundant number, since it is smaller than the sum of its proper divisors (141949999985644).

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

101212121201200 is a wasteful number, since it uses less digits than its factorization.

101212121201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253030303021 (or 253030303010 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101212121201200 its reverse (2102121212101), we get a palindrome (103314242413301).

The spelling of 101212121201200 in words is "one hundred one trillion, two hundred twelve billion, one hundred twenty-one million, two hundred one thousand, two hundred".