22226551720 has 32 divisors (see below), whose sum is σ = 50289141600. Its totient is φ = 8840949568.

The previous prime is 22226551687. The next prime is 22226551733. The reversal of 22226551720 is 2715562222.

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, 1544974 + ... + 1559293.

It is an arithmetic number, because the mean of its divisors is an integer number (1571535675).

Almost surely, 2^22226551720 is an apocalyptic number.

22226551720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22226551720 is an abundant number, since it is smaller than the sum of its proper divisors (28062589880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22226551720 is a wasteful number, since it uses less digits than its factorization.

22226551720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104457 (or 3104453 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 22226551720 in words is "twenty-two billion, two hundred twenty-six million, five hundred fifty-one thousand, seven hundred twenty".