100022011220 has 24 divisors (see below), whose sum is σ = 221101288800. Its totient is φ = 37903077792.

The previous prime is 100022011217. The next prime is 100022011249. The reversal of 100022011220 is 22110220001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131607530 + ... + 131608289.

It is an arithmetic number, because the mean of its divisors is an integer number (9212553700).

Almost surely, 2^100022011220 is an apocalyptic number.

100022011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100022011220 is an abundant number, since it is smaller than the sum of its proper divisors (121079277580).

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

100022011220 is a wasteful number, since it uses less digits than its factorization.

100022011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263215847 (or 263215845 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100022011220 its reverse (22110220001), we get a palindrome (122132231221).

The spelling of 100022011220 in words is "one hundred billion, twenty-two million, eleven thousand, two hundred twenty".