22121302204 has 24 divisors (see below), whose sum is σ = 40402510848. Its totient is φ = 10577896560.

The previous prime is 22121302193. The next prime is 22121302219. The reversal of 22121302204 is 40220312122.

It is a super-2 number, since 2×22121302204² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607069 + ... + 642475.

It is an arithmetic number, because the mean of its divisors is an integer number (1683437952).

Almost surely, 2^22121302204 is an apocalyptic number.

It is an amenable number.

22121302204 is a deficient number, since it is larger than the sum of its proper divisors (18281208644).

22121302204 is a wasteful number, since it uses less digits than its factorization.

22121302204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42225 (or 42223 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22121302204 its reverse (40220312122), we get a palindrome (62341614326).

The spelling of 22121302204 in words is "twenty-two billion, one hundred twenty-one million, three hundred two thousand, two hundred four".