2220111100 has 18 divisors (see below), whose sum is σ = 4817641304. Its totient is φ = 888044400.

The previous prime is 2220111079. The next prime is 2220111121. The reversal of 2220111100 is 11110222.

It is an interprime number because it is at equal distance from previous prime (2220111079) and next prime (2220111121).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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, 11100456 + ... + 11100655.

Almost surely, 2^2220111100 is an apocalyptic number.

2220111100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220111100 is an abundant number, since it is smaller than the sum of its proper divisors (2597530204).

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

2220111100 is a wasteful number, since it uses less digits than its factorization.

2220111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22201125 (or 22201118 counting only the distinct ones).

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

The square root of 2220111100 is about 47118.0549258986. The cubic root of 2220111100 is about 1304.5425112573.

Adding to 2220111100 its reverse (11110222), we get a palindrome (2231221322).

It can be divided in two parts, 22201 and 11100, that multiplied together give a triangular number (246431100 = T₂₂₂₀₀).

The spelling of 2220111100 in words is "two billion, two hundred twenty million, one hundred eleven thousand, one hundred".