121201023122130 has 32 divisors (see below), whose sum is σ = 332437091992704. Its totient is φ = 27703090999296.

The previous prime is 121201023122089. The next prime is 121201023122131. The reversal of 121201023122130 is 31221320102121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 121201023122097 and 121201023122106.

It is not an unprimeable number, because it can be changed into a prime (121201023122131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288573864367 + ... + 288573864786.

It is an arithmetic number, because the mean of its divisors is an integer number (10388659124772).

Almost surely, 2^{121201023122130} is an apocalyptic number.

121201023122130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121201023122130 is an abundant number, since it is smaller than the sum of its proper divisors (211236068870574).

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

121201023122130 is a wasteful number, since it uses less digits than its factorization.

121201023122130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577147729170.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121201023122130 its reverse (31221320102121), we get a palindrome (152422343224251).

The spelling of 121201023122130 in words is "one hundred twenty-one trillion, two hundred one billion, twenty-three million, one hundred twenty-two thousand, one hundred thirty".