22101199980 has 24 divisors (see below), whose sum is σ = 61883360112. Its totient is φ = 5893653312.

The previous prime is 22101199963. The next prime is 22101199987. The reversal of 22101199980 is 8999110122.

It is not an unprimeable number, because it can be changed into a prime (22101199987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184176607 + ... + 184176726.

It is an arithmetic number, because the mean of its divisors is an integer number (2578473338).

Almost surely, 2^22101199980 is an apocalyptic number.

22101199980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101199980 is an abundant number, since it is smaller than the sum of its proper divisors (39782160132).

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

22101199980 is a wasteful number, since it uses less digits than its factorization.

22101199980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368353345 (or 368353343 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 42.

The spelling of 22101199980 in words is "twenty-two billion, one hundred one million, one hundred ninety-nine thousand, nine hundred eighty".