220111110220220 has 48 divisors (see below), whose sum is σ = 462843054458400. Its totient is φ = 87928310661120.

The previous prime is 220111110220217. The next prime is 220111110220229. The reversal of 220111110220220 is 22022011111022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111110220229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140499691 + ... + 1140692669.

It is an arithmetic number, because the mean of its divisors is an integer number (9642563634550).

Almost surely, 2^{220111110220220} is an apocalyptic number.

220111110220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111110220220 is an abundant number, since it is smaller than the sum of its proper divisors (242731944238180).

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

220111110220220 is a wasteful number, since it uses less digits than its factorization.

220111110220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267918 (or 267916 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220111110220220 its reverse (22022011111022), we get a palindrome (242133121331242).

The spelling of 220111110220220 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred ten million, two hundred twenty thousand, two hundred twenty".