121012110221200 has 60 divisors (see below), whose sum is σ = 317161739800368. Its totient is φ = 44004403715200.

The previous prime is 121012110221147. The next prime is 121012110221257. The reversal of 121012110221200 is 2122011210121.

It is a super-3 number, since 3×121012110221200³ (a number of 43 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13751371762 + ... + 13751380561.

Almost surely, 2^{121012110221200} is an apocalyptic number.

121012110221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121012110221200 is an abundant number, since it is smaller than the sum of its proper divisors (196149629579168).

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

121012110221200 is a wasteful number, since it uses less digits than its factorization.

121012110221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27502752352 (or 27502752341 counting only the distinct ones).

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

Adding to 121012110221200 its reverse (2122011210121), we get a palindrome (123134121431321).

The spelling of 121012110221200 in words is "one hundred twenty-one trillion, twelve billion, one hundred ten million, two hundred twenty-one thousand, two hundred".