22012992240 has 40 divisors (see below), whose sum is σ = 68240276688. Its totient is φ = 5870131200.

The previous prime is 22012992223. The next prime is 22012992257. The reversal of 22012992240 is 4229921022.

It is an interprime number because it is at equal distance from previous prime (22012992223) and next prime (22012992257).

It is a tau number, because it is divible by the number of its divisors (40).

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, 45860161 + ... + 45860640.

Almost surely, 2^22012992240 is an apocalyptic number.

22012992240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012992240 is an abundant number, since it is smaller than the sum of its proper divisors (46227284448).

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

22012992240 is a wasteful number, since it uses less digits than its factorization.

22012992240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91720817 (or 91720811 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 22012992240 in words is "twenty-two billion, twelve million, nine hundred ninety-two thousand, two hundred forty".