22004213242 has 24 divisors (see below), whose sum is σ = 37260220788. Its totient is φ = 9731589120.

The previous prime is 22004213237. The next prime is 22004213251. The reversal of 22004213242 is 24231240022.

It can be written as a sum of positive squares in 2 ways, for example, as 21925021041 + 79192201 = 148071^2 + 8899^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1219783 + ... + 1237690.

Almost surely, 2^22004213242 is an apocalyptic number.

22004213242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22004213242 is a deficient number, since it is larger than the sum of its proper divisors (15256007546).

22004213242 is a wasteful number, since it uses less digits than its factorization.

22004213242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457534 (or 2457523 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22004213242 its reverse (24231240022), we get a palindrome (46235453264).

The spelling of 22004213242 in words is "twenty-two billion, four million, two hundred thirteen thousand, two hundred forty-two".