201402020121 has 16 divisors (see below), whose sum is σ = 272966606400. Its totient is φ = 132053181120.

The previous prime is 201402020051. The next prime is 201402020161. The reversal of 201402020121 is 121020204102.

It is not a de Polignac number, because 201402020121 - 2³⁷ = 63963066649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201402020121.

It is not an unprimeable number, because it can be changed into a prime (201402020161) 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, 1890330 + ... + 1994028.

It is an arithmetic number, because the mean of its divisors is an integer number (17060412900).

Almost surely, 2^201402020121 is an apocalyptic number.

It is an amenable number.

201402020121 is a deficient number, since it is larger than the sum of its proper divisors (71564586279).

201402020121 is a wasteful number, since it uses less digits than its factorization.

201402020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114376.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201402020121 its reverse (121020204102), we get a palindrome (322422224223).

The spelling of 201402020121 in words is "two hundred one billion, four hundred two million, twenty thousand, one hundred twenty-one".