22100021204 has 12 divisors (see below), whose sum is σ = 38677163700. Its totient is φ = 11049403008.

The previous prime is 22100021197. The next prime is 22100021243. The reversal of 22100021204 is 40212000122.

It can be written as a sum of positive squares in 2 ways, for example, as 3445924804 + 18654096400 = 58702^2 + 136580^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64469 + ... + 219900.

It is an arithmetic number, because the mean of its divisors is an integer number (3223096975).

Almost surely, 2^22100021204 is an apocalyptic number.

It is an amenable number.

22100021204 is a deficient number, since it is larger than the sum of its proper divisors (16577142496).

22100021204 is a wasteful number, since it uses less digits than its factorization.

22100021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303802 (or 303800 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22100021204 its reverse (40212000122), we get a palindrome (62312021326).

The spelling of 22100021204 in words is "twenty-two billion, one hundred million, twenty-one thousand, two hundred four".