2122202100 has 72 divisors (see below), whose sum is σ = 6214289760. Its totient is φ = 559095680.

The previous prime is 2122202087. The next prime is 2122202113. The reversal of 2122202100 is 12022212.

It is an interprime number because it is at equal distance from previous prime (2122202087) and next prime (2122202113).

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 17715 + ... + 67514.

It is an arithmetic number, because the mean of its divisors is an integer number (86309580).

Almost surely, 2^2122202100 is an apocalyptic number.

2122202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122202100 is an abundant number, since it is smaller than the sum of its proper divisors (4092087660).

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

2122202100 is a wasteful number, since it uses less digits than its factorization.

2122202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85329 (or 85322 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2122202100 is about 46067.3648041648. The cubic root of 2122202100 is about 1285.0762974072.

Adding to 2122202100 its reverse (12022212), we get a palindrome (2134224312).

The spelling of 2122202100 in words is "two billion, one hundred twenty-two million, two hundred two thousand, one hundred".