22281038906 has 32 divisors (see below), whose sum is σ = 39870275328. Its totient is φ = 9130746240.

The previous prime is 22281038891. The next prime is 22281038911. The reversal of 22281038906 is 60983018222.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1104446 + ... + 1124438.

It is an arithmetic number, because the mean of its divisors is an integer number (1245946104).

Almost surely, 2^22281038906 is an apocalyptic number.

22281038906 is a deficient number, since it is larger than the sum of its proper divisors (17589236422).

22281038906 is a wasteful number, since it uses less digits than its factorization.

22281038906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23486.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 22281038906 in words is "twenty-two billion, two hundred eighty-one million, thirty-eight thousand, nine hundred six".