221112431230210 has 32 divisors (see below), whose sum is σ = 428627112544512. Its totient is φ = 81639766607040.

The previous prime is 221112431230189. The next prime is 221112431230253. The reversal of 221112431230210 is 12032134211122.

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, 12084006 + ... + 24253825.

It is an arithmetic number, because the mean of its divisors is an integer number (13394597267016).

Almost surely, 2^{221112431230210} is an apocalyptic number.

221112431230210 is a deficient number, since it is larger than the sum of its proper divisors (207514681314302).

221112431230210 is a wasteful number, since it uses less digits than its factorization.

221112431230210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36384658.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 221112431230210 its reverse (12032134211122), we get a palindrome (233144565441332).

The spelling of 221112431230210 in words is "two hundred twenty-one trillion, one hundred twelve billion, four hundred thirty-one million, two hundred thirty thousand, two hundred ten".