2172702100 has 36 divisors (see below), whose sum is σ = 4719947904. Its totient is φ = 868125280.

The previous prime is 2172702097. The next prime is 2172702101. The reversal of 2172702100 is 12072712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172702101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83229 + ... + 106171.

It is an arithmetic number, because the mean of its divisors is an integer number (131109664).

Almost surely, 2^2172702100 is an apocalyptic number.

2172702100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2172702100 is an abundant number, since it is smaller than the sum of its proper divisors (2547245804).

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

2172702100 is a wasteful number, since it uses less digits than its factorization.

2172702100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23904 (or 23897 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 2172702100 is about 46612.2526810280. The cubic root of 2172702100 is about 1295.1897378058.

Adding to 2172702100 its reverse (12072712), we get a palindrome (2184774812).

The spelling of 2172702100 in words is "two billion, one hundred seventy-two million, seven hundred two thousand, one hundred".