121024040420121 has 16 divisors (see below), whose sum is σ = 164867983873920. Its totient is φ = 78939876154880.

The previous prime is 121024040420099. The next prime is 121024040420177.

It is a happy number.

121024040420121 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 121024040420121 - 2⁹ = 121024040419609 is a prime.

It is a super-2 number, since 2×121024040420121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121024040420091 and 121024040420100.

It is not an unprimeable number, because it can be changed into a prime (121024040400121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060050840 + ... + 1060165001.

It is an arithmetic number, because the mean of its divisors is an integer number (10304248992120).

Almost surely, 2^{121024040420121} is an apocalyptic number.

It is an amenable number.

121024040420121 is a deficient number, since it is larger than the sum of its proper divisors (43843943453799).

121024040420121 is a wasteful number, since it uses less digits than its factorization.

121024040420121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120216256.

The product of its (nonzero) digits is 1024, while the sum is 24.

The spelling of 121024040420121 in words is "one hundred twenty-one trillion, twenty-four billion, forty million, four hundred twenty thousand, one hundred twenty-one".