121010031012210 has 64 divisors (see below), whose sum is σ = 295152965130240. Its totient is φ = 31747162758080.

The previous prime is 121010031012193. The next prime is 121010031012257. The reversal of 121010031012210 is 12210130010121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121010031012210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101075196 + ... + 102265415.

It is an arithmetic number, because the mean of its divisors is an integer number (4611765080160).

Almost surely, 2^{121010031012210} is an apocalyptic number.

121010031012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121010031012210 is an abundant number, since it is smaller than the sum of its proper divisors (174142934118030).

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

121010031012210 is a wasteful number, since it uses less digits than its factorization.

121010031012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203340943.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121010031012210 its reverse (12210130010121), we get a palindrome (133220161022331).

The spelling of 121010031012210 in words is "one hundred twenty-one trillion, ten billion, thirty-one million, twelve thousand, two hundred ten".