221102111210 has 64 divisors (see below), whose sum is σ = 418936976640. Its totient is φ = 83854932480.

The previous prime is 221102111207. The next prime is 221102111227. The reversal of 221102111210 is 12111201122.

It is a super-2 number, since 2×221102111210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14576030 + ... + 14591190.

It is an arithmetic number, because the mean of its divisors is an integer number (6545890260).

Almost surely, 2^221102111210 is an apocalyptic number.

221102111210 is a deficient number, since it is larger than the sum of its proper divisors (197834865430).

221102111210 is a wasteful number, since it uses less digits than its factorization.

221102111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15743.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221102111210 its reverse (12111201122), we get a palindrome (233213312332).

The spelling of 221102111210 in words is "two hundred twenty-one billion, one hundred two million, one hundred eleven thousand, two hundred ten".