100222321020 has 48 divisors (see below), whose sum is σ = 281236629408. Its totient is φ = 26667463680.

The previous prime is 100222320997. The next prime is 100222321021. The reversal of 100222321020 is 20123222001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222321021) 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, 1800121 + ... + 1854960.

It is an arithmetic number, because the mean of its divisors is an integer number (5859096446).

Almost surely, 2^100222321020 is an apocalyptic number.

100222321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222321020 is an abundant number, since it is smaller than the sum of its proper divisors (181014308388).

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

100222321020 is a wasteful number, since it uses less digits than its factorization.

100222321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655550 (or 3655548 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 100222321020 its reverse (20123222001), we get a palindrome (120345543021).

The spelling of 100222321020 in words is "one hundred billion, two hundred twenty-two million, three hundred twenty-one thousand, twenty".