1200021210132 has 24 divisors (see below), whose sum is σ = 2818592868672. Its totient is φ = 397358016000.

The previous prime is 1200021210109. The next prime is 1200021210137. The reversal of 1200021210132 is 2310121200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200021210137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331129869 + ... + 331133492.

It is an arithmetic number, because the mean of its divisors is an integer number (117441369528).

Almost surely, 2^{1200021210132} is an apocalyptic number.

1200021210132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200021210132 is an abundant number, since it is smaller than the sum of its proper divisors (1618571658540).

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

1200021210132 is a wasteful number, since it uses less digits than its factorization.

1200021210132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662263519 (or 662263517 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1200021210132 its reverse (2310121200021), we get a palindrome (3510142410153).

The spelling of 1200021210132 in words is "one trillion, two hundred billion, twenty-one million, two hundred ten thousand, one hundred thirty-two".