220111012 has 48 divisors (see below), whose sum is σ = 440681472. Its totient is φ = 95221280.

The previous prime is 220110967. The next prime is 220111027. The reversal of 220111012 is 210111022.

It is a self number, because there is not a number n which added to its sum of digits gives 220111012.

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, 265743 + ... + 266569.

It is an arithmetic number, because the mean of its divisors is an integer number (9180864).

Almost surely, 2^220111012 is an apocalyptic number.

220111012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220111012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

220111012 is a wasteful number, since it uses less digits than its factorization.

220111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 220111012 is about 14836.1387159867. The cubic root of 220111012 is about 603.7825957623.

Adding to 220111012 its sum of digits (10), we get a palindrome (220111022).

Adding to 220111012 its reverse (210111022), we get a palindrome (430222034).

The spelling of 220111012 in words is "two hundred twenty million, one hundred eleven thousand, twelve".