221102102210 has 32 divisors (see below), whose sum is σ = 434200051584. Its totient is φ = 80394112000.

The previous prime is 221102102189. The next prime is 221102102239. The reversal of 221102102210 is 12201201122.

It is a super-2 number, since 2×221102102210² (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 15 ways as a sum of consecutive naturals, for example, 1366715 + ... + 1519905.

It is an arithmetic number, because the mean of its divisors is an integer number (13568751612).

Almost surely, 2^221102102210 is an apocalyptic number.

221102102210 is a deficient number, since it is larger than the sum of its proper divisors (213097949374).

221102102210 is a wasteful number, since it uses less digits than its factorization.

221102102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166330.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221102102210 its reverse (12201201122), we get a palindrome (233303303332).

The spelling of 221102102210 in words is "two hundred twenty-one billion, one hundred two million, one hundred two thousand, two hundred ten".