22215505250 has 32 divisors (see below), whose sum is σ = 41598700416. Its totient is φ = 8883793200.

The previous prime is 22215505199. The next prime is 22215505289. The reversal of 22215505250 is 5250551222.

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, 1126979 + ... + 1146521.

It is an arithmetic number, because the mean of its divisors is an integer number (1299959388).

Almost surely, 2^22215505250 is an apocalyptic number.

22215505250 is a deficient number, since it is larger than the sum of its proper divisors (19383195166).

22215505250 is a wasteful number, since it uses less digits than its factorization.

22215505250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24107 (or 24097 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 22215505250 in words is "twenty-two billion, two hundred fifteen million, five hundred five thousand, two hundred fifty".