100111212022220 has 96 divisors (see below), whose sum is σ = 241710336258048. Its totient is φ = 34117729880832.

The previous prime is 100111212022183. The next prime is 100111212022243. The reversal of 100111212022220 is 22220212111001.

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, 107241599 + ... + 108171081.

It is an arithmetic number, because the mean of its divisors is an integer number (2517816002688).

Almost surely, 2^{100111212022220} is an apocalyptic number.

100111212022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100111212022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120855168129024).

100111212022220 is an abundant number, since it is smaller than the sum of its proper divisors (141599124235828).

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

100111212022220 is a wasteful number, since it uses less digits than its factorization.

100111212022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934119 (or 934117 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100111212022220 its reverse (22220212111001), we get a palindrome (122331424133221).

The spelling of 100111212022220 in words is "one hundred trillion, one hundred eleven billion, two hundred twelve million, twenty-two thousand, two hundred twenty".