2213123100 has 36 divisors (see below), whose sum is σ = 6403303704. Its totient is φ = 590166080.

The previous prime is 2213123093. The next prime is 2213123167. The reversal of 2213123100 is 13213122.

It is a super-2 number, since 2×2213123100² = 9795827711507220000, which contains 22 as substring.

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 2213123100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3688239 + ... + 3688838.

Almost surely, 2^2213123100 is an apocalyptic number.

2213123100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213123100 is an abundant number, since it is smaller than the sum of its proper divisors (4190180604).

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

2213123100 is a wasteful number, since it uses less digits than its factorization.

2213123100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377094 (or 7377087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2213123100 is about 47043.8423175659. The cubic root of 2213123100 is about 1303.1723509297.

Adding to 2213123100 its reverse (13213122), we get a palindrome (2226336222).

The spelling of 2213123100 in words is "two billion, two hundred thirteen million, one hundred twenty-three thousand, one hundred".