220111212210 has 32 divisors (see below), whose sum is σ = 528835616640. Its totient is φ = 58633133568.

The previous prime is 220111212203. The next prime is 220111212227. The reversal of 220111212210 is 12212111022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220111212210.

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, 3921022 + ... + 3976761.

It is an arithmetic number, because the mean of its divisors is an integer number (16526113020).

Almost surely, 2^220111212210 is an apocalyptic number.

220111212210 is an abundant number, since it is smaller than the sum of its proper divisors (308724404430).

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

220111212210 is a wasteful number, since it uses less digits than its factorization.

220111212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7898722.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220111212210 its reverse (12212111022), we get a palindrome (232323323232).

The spelling of 220111212210 in words is "two hundred twenty billion, one hundred eleven million, two hundred twelve thousand, two hundred ten".