22201186920 has 128 divisors (see below), whose sum is σ = 75002388480. Its totient is φ = 5208480000.

The previous prime is 22201186919. The next prime is 22201186961. The reversal of 22201186920 is 2968110222.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230356 + ... + 312195.

It is an arithmetic number, because the mean of its divisors is an integer number (585956160).

Almost surely, 2^22201186920 is an apocalyptic number.

22201186920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201186920 is an abundant number, since it is smaller than the sum of its proper divisors (52801201560).

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

22201186920 is a wasteful number, since it uses less digits than its factorization.

22201186920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542607 (or 542603 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 22201186920 in words is "twenty-two billion, two hundred one million, one hundred eighty-six thousand, nine hundred twenty".