221112431230204 has 12 divisors (see below), whose sum is σ = 390496724879800. Its totient is φ = 109541938407408.

The previous prime is 221112431230189. The next prime is 221112431230253. The reversal of 221112431230204 is 402032134211122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253569301434 + ... + 253569302305.

Almost surely, 2^{221112431230204} is an apocalyptic number.

It is an amenable number.

221112431230204 is a deficient number, since it is larger than the sum of its proper divisors (169384293649596).

221112431230204 is a wasteful number, since it uses less digits than its factorization.

221112431230204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507138603852 (or 507138603850 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 221112431230204 its reverse (402032134211122), we get a palindrome (623144565441326).

The spelling of 221112431230204 in words is "two hundred twenty-one trillion, one hundred twelve billion, four hundred thirty-one million, two hundred thirty thousand, two hundred four".