22506921212 has 6 divisors (see below), whose sum is σ = 39387112128. Its totient is φ = 11253460604.

The previous prime is 22506921209. The next prime is 22506921251. The reversal of 22506921212 is 21212960522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2813365148 + ... + 2813365155.

It is an arithmetic number, because the mean of its divisors is an integer number (6564518688).

Almost surely, 2^22506921212 is an apocalyptic number.

It is an amenable number.

22506921212 is a deficient number, since it is larger than the sum of its proper divisors (16880190916).

22506921212 is a wasteful number, since it uses less digits than its factorization.

22506921212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626730307 (or 5626730305 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 22506921212 in words is "twenty-two billion, five hundred six million, nine hundred twenty-one thousand, two hundred twelve".