1210211200120 has 32 divisors (see below), whose sum is σ = 2932434832320. Its totient is φ = 446847212160.

The previous prime is 1210211200103. The next prime is 1210211200153. The reversal of 1210211200120 is 210021120121.

It is a super-2 number, since 2×1210211200120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1210211200120.

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, 1163664096 + ... + 1163665135.

It is an arithmetic number, because the mean of its divisors is an integer number (91638588510).

Almost surely, 2^{1210211200120} is an apocalyptic number.

1210211200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210211200120 is an abundant number, since it is smaller than the sum of its proper divisors (1722223632200).

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

1210211200120 is a wasteful number, since it uses less digits than its factorization.

1210211200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327329255 (or 2327329251 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1210211200120 its reverse (210021120121), we get a palindrome (1420232320241).

The spelling of 1210211200120 in words is "one trillion, two hundred ten billion, two hundred eleven million, two hundred thousand, one hundred twenty".