22002304402 has 16 divisors (see below), whose sum is σ = 35545187160. Its totient is φ = 10154051712.

The previous prime is 22002304309. The next prime is 22002304409. The reversal of 22002304402 is 20440320022.

It can be written as a sum of positive squares in 4 ways, for example, as 1935032121 + 20067272281 = 43989^2 + 141659^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22002304402.

It is not an unprimeable number, because it can be changed into a prime (22002304409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360928 + ... + 417460.

Almost surely, 2^22002304402 is an apocalyptic number.

22002304402 is a deficient number, since it is larger than the sum of its proper divisors (13542882758).

22002304402 is a wasteful number, since it uses less digits than its factorization.

22002304402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71517.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 22002304402 its reverse (20440320022), we get a palindrome (42442624424).

The spelling of 22002304402 in words is "twenty-two billion, two million, three hundred four thousand, four hundred two".