221223133104 has 40 divisors (see below), whose sum is σ = 572890438320. Its totient is φ = 73560741888.

The previous prime is 221223133097. The next prime is 221223133171. The reversal of 221223133104 is 401331322122.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 5614617 + ... + 5653880.

It is an arithmetic number, because the mean of its divisors is an integer number (14322260958).

Almost surely, 2^221223133104 is an apocalyptic number.

221223133104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

221223133104 is an abundant number, since it is smaller than the sum of its proper divisors (351667305216).

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

221223133104 is a wasteful number, since it uses less digits than its factorization.

221223133104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11268917 (or 11268911 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 221223133104 its reverse (401331322122), we get a palindrome (622554455226).

The spelling of 221223133104 in words is "two hundred twenty-one billion, two hundred twenty-three million, one hundred thirty-three thousand, one hundred four".