100223221020 has 48 divisors (see below), whose sum is σ = 302211561120. Its totient is φ = 24670331136.

The previous prime is 100223221009. The next prime is 100223221079. The reversal of 100223221020 is 20122322001.

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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64244875 + ... + 64246434.

It is an arithmetic number, because the mean of its divisors is an integer number (6296074190).

Almost surely, 2^100223221020 is an apocalyptic number.

100223221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100223221020 is an abundant number, since it is smaller than the sum of its proper divisors (201988340100).

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

100223221020 is a wasteful number, since it uses less digits than its factorization.

100223221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128491334 (or 128491332 counting only the distinct ones).

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

Adding to 100223221020 its reverse (20122322001), we get a palindrome (120345543021).

The spelling of 100223221020 in words is "one hundred billion, two hundred twenty-three million, two hundred twenty-one thousand, twenty".