221310102112310 has 128 divisors (see below), whose sum is σ = 419624485023744. Its totient is φ = 83935959367680.

The previous prime is 221310102112273. The next prime is 221310102112321. The reversal of 221310102112310 is 13211201013122.

It is a super-2 number, since 2×221310102112310² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1750350854 + ... + 1750477286.

It is an arithmetic number, because the mean of its divisors is an integer number (3278316289248).

Almost surely, 2^{221310102112310} is an apocalyptic number.

221310102112310 is a deficient number, since it is larger than the sum of its proper divisors (198314382911434).

221310102112310 is a wasteful number, since it uses less digits than its factorization.

221310102112310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127158.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 221310102112310 its reverse (13211201013122), we get a palindrome (234521303125432).

The spelling of 221310102112310 in words is "two hundred twenty-one trillion, three hundred ten billion, one hundred two million, one hundred twelve thousand, three hundred ten".