221110102210 has 16 divisors (see below), whose sum is σ = 398010263616. Its totient is φ = 88441356528.

The previous prime is 221110102201. The next prime is 221110102223. The reversal of 221110102210 is 12201011122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29299 + ... + 665641.

It is an arithmetic number, because the mean of its divisors is an integer number (24875641476).

Almost surely, 2^221110102210 is an apocalyptic number.

221110102210 is a deficient number, since it is larger than the sum of its proper divisors (176900161406).

221110102210 is a wasteful number, since it uses less digits than its factorization.

221110102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671097.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221110102210 its reverse (12201011122), we get a palindrome (233311113332).

The spelling of 221110102210 in words is "two hundred twenty-one billion, one hundred ten million, one hundred two thousand, two hundred ten".