221132142204 has 48 divisors (see below), whose sum is σ = 519389069472. Its totient is φ = 73224456192.

The previous prime is 221132142193. The next prime is 221132142211. The reversal of 221132142204 is 402241231122.

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, 1119342 + ... + 1301994.

It is an arithmetic number, because the mean of its divisors is an integer number (10820605614).

Almost surely, 2^221132142204 is an apocalyptic number.

It is an amenable number.

221132142204 is an abundant number, since it is smaller than the sum of its proper divisors (298256927268).

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

221132142204 is a wasteful number, since it uses less digits than its factorization.

221132142204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183326 (or 183324 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 221132142204 its reverse (402241231122), we get a palindrome (623373373326).

The spelling of 221132142204 in words is "two hundred twenty-one billion, one hundred thirty-two million, one hundred forty-two thousand, two hundred four".