124402120202 has 4 divisors (see below), whose sum is σ = 186603180306. Its totient is φ = 62201060100.

The previous prime is 124402120181. The next prime is 124402120253. The reversal of 124402120202 is 202021204421.

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

It can be written as a sum of positive squares in only one way, i.e., 121688647921 + 2713472281 = 348839^2 + 52091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31100530049 + ... + 31100530052.

Almost surely, 2^124402120202 is an apocalyptic number.

124402120202 is a deficient number, since it is larger than the sum of its proper divisors (62201060104).

124402120202 is an equidigital number, since it uses as much as digits as its factorization.

124402120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62201060103.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 124402120202 its reverse (202021204421), we get a palindrome (326423324623).

The spelling of 124402120202 in words is "one hundred twenty-four billion, four hundred two million, one hundred twenty thousand, two hundred two".