22122004 has 24 divisors (see below), whose sum is σ = 41857760. Its totient is φ = 10194336.

The previous prime is 22121987. The next prime is 22122011. The reversal of 22122004 is 40022122.

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, 1122 + ... + 6745.

Almost surely, 2^22122004 is an apocalyptic number.

It is an amenable number.

22122004 is a deficient number, since it is larger than the sum of its proper divisors (19735756).

22122004 is a wasteful number, since it uses less digits than its factorization.

22122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7927 (or 7925 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22122004 is about 4703.4034485679. The cubic root of 22122004 is about 280.7209482209.

Adding to 22122004 its reverse (40022122), we get a palindrome (62144126).

The spelling of 22122004 in words is "twenty-two million, one hundred twenty-two thousand, four".