124212122131 has 4 divisors (see below), whose sum is σ = 124334741232. Its totient is φ = 124089503032.

The previous prime is 124212122113. The next prime is 124212122137. The reversal of 124212122131 is 131221212421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124212122131 - 2³³ = 115622187539 is a prime.

It is a super-2 number, since 2×124212122131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124212122137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61308031 + ... + 61310056.

It is an arithmetic number, because the mean of its divisors is an integer number (31083685308).

Almost surely, 2^124212122131 is an apocalyptic number.

124212122131 is a deficient number, since it is larger than the sum of its proper divisors (122619101).

124212122131 is a wasteful number, since it uses less digits than its factorization.

124212122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122619100.

The product of its digits is 384, while the sum is 22.

Adding to 124212122131 its reverse (131221212421), we get a palindrome (255433334552).

The spelling of 124212122131 in words is "one hundred twenty-four billion, two hundred twelve million, one hundred twenty-two thousand, one hundred thirty-one".