202142121124 has 12 divisors (see below), whose sum is σ = 353759790384. Its totient is φ = 101067895304.

The previous prime is 202142121113. The next prime is 202142121179. The reversal of 202142121124 is 421121241202.

It is a super-2 number, since 2×202142121124² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202142121095 and 202142121104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644602 + ... + 905425.

It is an arithmetic number, because the mean of its divisors is an integer number (29479982532).

Almost surely, 2^202142121124 is an apocalyptic number.

It is an amenable number.

202142121124 is a deficient number, since it is larger than the sum of its proper divisors (151617669260).

202142121124 is a wasteful number, since it uses less digits than its factorization.

202142121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582634 (or 1582632 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 202142121124 its reverse (421121241202), we get a palindrome (623263362326).

The spelling of 202142121124 in words is "two hundred two billion, one hundred forty-two million, one hundred twenty-one thousand, one hundred twenty-four".