220111021210 has 64 divisors (see below), whose sum is σ = 441752849280. Its totient is φ = 78474147840.

The previous prime is 220111021183. The next prime is 220111021279. The reversal of 220111021210 is 12120111022.

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, 9584862 + ... + 9607798.

It is an arithmetic number, because the mean of its divisors is an integer number (6902388270).

Almost surely, 2^220111021210 is an apocalyptic number.

220111021210 is an abundant number, since it is smaller than the sum of its proper divisors (221641828070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220111021210 is a wasteful number, since it uses less digits than its factorization.

220111021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25951.

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

Adding to 220111021210 its reverse (12120111022), we get a palindrome (232231132232).

The spelling of 220111021210 in words is "two hundred twenty billion, one hundred eleven million, twenty-one thousand, two hundred ten".