121425524121 has 64 divisors (see below), whose sum is σ = 192173506560. Its totient is φ = 67377096000.

The previous prime is 121425524117. The next prime is 121425524123.

121425524121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121425524121 - 2² = 121425524117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121425524123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15759556 + ... + 15767258.

It is an arithmetic number, because the mean of its divisors is an integer number (3002711040).

Almost surely, 2^121425524121 is an apocalyptic number.

121425524121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121425524121 is a deficient number, since it is larger than the sum of its proper divisors (70747982439).

121425524121 is a wasteful number, since it uses less digits than its factorization.

121425524121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578.

The product of its digits is 6400, while the sum is 30.

It can be divided in two parts, 121425 and 524121, that added together give a palindrome (645546).

The spelling of 121425524121 in words is "one hundred twenty-one billion, four hundred twenty-five million, five hundred twenty-four thousand, one hundred twenty-one".