2220112100 has 18 divisors (see below), whose sum is σ = 4817643474. Its totient is φ = 888044800.

The previous prime is 2220112087. The next prime is 2220112159. The reversal of 2220112100 is 12110222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 195832036 + 2024280064 = 13994^2 + 44992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11100461 + ... + 11100660.

Almost surely, 2^2220112100 is an apocalyptic number.

2220112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220112100 is an abundant number, since it is smaller than the sum of its proper divisors (2597531374).

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

2220112100 is a wasteful number, since it uses less digits than its factorization.

2220112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22201135 (or 22201128 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2220112100 is about 47118.0655375409. The cubic root of 2220112100 is about 1304.5427071248.

Adding to 2220112100 its reverse (12110222), we get a palindrome (2232222322).

It can be divided in two parts, 22201 and 12100, that multiplied together give a square (268632100 = 16390²).

The spelling of 2220112100 in words is "two billion, two hundred twenty million, one hundred twelve thousand, one hundred".