121310103012210 has 64 divisors (see below), whose sum is σ = 369706980614400. Its totient is φ = 27728023545216.

The previous prime is 121310103012169. The next prime is 121310103012221. The reversal of 121310103012210 is 12210301013121.

121310103012210 is a `hidden beast` number, since 1 + 2 + 131 + 0 + 10 + 301 + 221 + 0 = 666.

It is a super-2 number, since 2×121310103012210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32092617955 + ... + 32092621734.

It is an arithmetic number, because the mean of its divisors is an integer number (5776671572100).

Almost surely, 2^{121310103012210} is an apocalyptic number.

121310103012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121310103012210 is an abundant number, since it is smaller than the sum of its proper divisors (248396877602190).

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

121310103012210 is a wasteful number, since it uses less digits than its factorization.

121310103012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64185239712 (or 64185239706 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121310103012210 its reverse (12210301013121), we get a palindrome (133520404025331).

The spelling of 121310103012210 in words is "one hundred twenty-one trillion, three hundred ten billion, one hundred three million, twelve thousand, two hundred ten".