100222221180 has 48 divisors (see below), whose sum is σ = 284574657024. Its totient is φ = 26349503040.

The previous prime is 100222221173. The next prime is 100222221181. The reversal of 100222221180 is 81122222001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222221181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11758912 + ... + 11767431.

It is an arithmetic number, because the mean of its divisors is an integer number (5928638688).

Almost surely, 2^100222221180 is an apocalyptic number.

100222221180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222221180 is an abundant number, since it is smaller than the sum of its proper divisors (184352435844).

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

100222221180 is a wasteful number, since it uses less digits than its factorization.

100222221180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23526426 (or 23526424 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 100222221180 its reverse (81122222001), we get a palindrome (181344443181).

The spelling of 100222221180 in words is "one hundred billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred eighty".