22101971984880 has 80 divisors (see below), whose sum is σ = 69156450739584. Its totient is φ = 5838776392960.

The previous prime is 22101971984879. The next prime is 22101971984927. The reversal of 22101971984880 is 8848917910122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×22101971984880² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

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, 430308666 + ... + 430360025.

Almost surely, 2^{22101971984880} is an apocalyptic number.

22101971984880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101971984880 is an abundant number, since it is smaller than the sum of its proper divisors (47054478754704).

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

22101971984880 is a wasteful number, since it uses less digits than its factorization.

22101971984880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860668814 (or 860668808 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 60.

The spelling of 22101971984880 in words is "twenty-two trillion, one hundred one billion, nine hundred seventy-one million, nine hundred eighty-four thousand, eight hundred eighty".