100222221220220 has 96 divisors (see below), whose sum is σ = 253675701006336. Its totient is φ = 32809320473600.

The previous prime is 100222221220217. The next prime is 100222221220283. The reversal of 100222221220220 is 22022122222001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100222221220192 and 100222221220201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582465836 + ... + 582637875.

It is an arithmetic number, because the mean of its divisors is an integer number (2642455218816).

Almost surely, 2^{100222221220220} is an apocalyptic number.

100222221220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222221220220 is an abundant number, since it is smaller than the sum of its proper divisors (153453479786116).

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

100222221220220 is a wasteful number, since it uses less digits than its factorization.

100222221220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165103771 (or 1165103769 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 100222221220220 its reverse (22022122222001), we get a palindrome (122244343442221).

The spelling of 100222221220220 in words is "one hundred trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty".