121020113040210 has 24 divisors (see below), whose sum is σ = 314652293904780. Its totient is φ = 32272030144032.

The previous prime is 121020113040149. The next prime is 121020113040223. The reversal of 121020113040210 is 12040311020121.

121020113040210 is a `hidden beast` number, since 1 + 21 + 0 + 201 + 1 + 30 + 402 + 10 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 111665525630481 + 9354587409729 = 10567191^2 + 3058527^2 .

It is a super-3 number, since 3×121020113040210³ (a number of 43 digits) contains 333 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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 672333961245 + ... + 672333961424.

Almost surely, 2^{121020113040210} is an apocalyptic number.

121020113040210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020113040210 is an abundant number, since it is smaller than the sum of its proper divisors (193632180864570).

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

121020113040210 is a wasteful number, since it uses less digits than its factorization.

121020113040210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344667922682 (or 1344667922679 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121020113040210 its reverse (12040311020121), we get a palindrome (133060424060331).

The spelling of 121020113040210 in words is "one hundred twenty-one trillion, twenty billion, one hundred thirteen million, forty thousand, two hundred ten".