1012200021210 has 128 divisors (see below), whose sum is σ = 2909547763200. Its totient is φ = 225106947072.

The previous prime is 1012200021193. The next prime is 1012200021229. The reversal of 1012200021210 is 121200022101.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 948559 + ... + 1710018.

It is an arithmetic number, because the mean of its divisors is an integer number (22730841900).

Almost surely, 2^{1012200021210} is an apocalyptic number.

1012200021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012200021210 is an abundant number, since it is smaller than the sum of its proper divisors (1897347741990).

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

1012200021210 is a wasteful number, since it uses less digits than its factorization.

1012200021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658645 (or 2658631 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1012200021210 its reverse (121200022101), we get a palindrome (1133400043311).

The spelling of 1012200021210 in words is "one trillion, twelve billion, two hundred million, twenty-one thousand, two hundred ten".