2122204100 has 18 divisors (see below), whose sum is σ = 4605183114. Its totient is φ = 848881600.

The previous prime is 2122204093. The next prime is 2122204109. The reversal of 2122204100 is 14022212.

It can be written as a sum of positive squares in 3 ways, for example, as 83320384 + 2038883716 = 9128^2 + 45154^2 .

It is not an unprimeable number, because it can be changed into a prime (2122204109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10610921 + ... + 10611120.

Almost surely, 2^2122204100 is an apocalyptic number.

2122204100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122204100 is an abundant number, since it is smaller than the sum of its proper divisors (2482979014).

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

2122204100 is a wasteful number, since it uses less digits than its factorization.

2122204100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222055 (or 21222048 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2122204100 is about 46067.3865115007. The cubic root of 2122204100 is about 1285.0767010998.

Adding to 2122204100 its reverse (14022212), we get a palindrome (2136226312).

The spelling of 2122204100 in words is "two billion, one hundred twenty-two million, two hundred four thousand, one hundred".