223021022100 has 36 divisors (see below), whose sum is σ = 645274158144. Its totient is φ = 59472272480.

The previous prime is 223021022099. The next prime is 223021022111. The reversal of 223021022100 is 1220120322.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 223021022100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371701404 + ... + 371702003.

Almost surely, 2^223021022100 is an apocalyptic number.

223021022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223021022100 is an abundant number, since it is smaller than the sum of its proper divisors (422253136044).

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

223021022100 is a wasteful number, since it uses less digits than its factorization.

223021022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743403424 (or 743403417 counting only the distinct ones).

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

Adding to 223021022100 its reverse (1220120322), we get a palindrome (224241142422).

The spelling of 223021022100 in words is "two hundred twenty-three billion, twenty-one million, twenty-two thousand, one hundred".