121020120110010 has 128 divisors (see below), whose sum is σ = 333541311667200. Its totient is φ = 27793079838720.

The previous prime is 121020120109979. The next prime is 121020120110041. The reversal of 121020120110010 is 10011021020121.

It is an interprime number because it is at equal distance from previous prime (121020120109979) and next prime (121020120110041).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 178651626 + ... + 179327754.

It is an arithmetic number, because the mean of its divisors is an integer number (2605791497400).

Almost surely, 2^{121020120110010} is an apocalyptic number.

121020120110010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121020120110010 is an abundant number, since it is smaller than the sum of its proper divisors (212521191557190).

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

121020120110010 is a wasteful number, since it uses less digits than its factorization.

121020120110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704716.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121020120110010 its reverse (10011021020121), we get a palindrome (131031141130131).

The spelling of 121020120110010 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty million, one hundred ten thousand, ten".