2200022100 has 72 divisors (see below), whose sum is σ = 7072672320. Its totient is φ = 586671840.

The previous prime is 2200022087. The next prime is 2200022129. The reversal of 2200022100 is 12200022.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404712 + ... + 410111.

It is an arithmetic number, because the mean of its divisors is an integer number (98231560).

Almost surely, 2^2200022100 is an apocalyptic number.

2200022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2200022100 is an abundant number, since it is smaller than the sum of its proper divisors (4872650220).

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

2200022100 is a wasteful number, since it uses less digits than its factorization.

2200022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814846 (or 814833 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2200022100 is about 46904.3931844342. The cubic root of 2200022100 is about 1300.5958018476.

Adding to 2200022100 its reverse (12200022), we get a palindrome (2212222122).

It can be divided in two parts, 22000 and 22100, that added together give a square (44100 = 210²).

The spelling of 2200022100 in words is "two billion, two hundred million, twenty-two thousand, one hundred".