2122113720 has 32 divisors (see below), whose sum is σ = 6366341520. Its totient is φ = 565896960.

The previous prime is 2122113709. The next prime is 2122113751. The reversal of 2122113720 is 273112212.

It is a super-2 number, since 2×2122113720² = 9006733281224476800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8842021 + ... + 8842260.

Almost surely, 2^2122113720 is an apocalyptic number.

2122113720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122113720 is an abundant number, since it is smaller than the sum of its proper divisors (4244227800).

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

2122113720 is a wasteful number, since it uses less digits than its factorization.

2122113720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17684295 (or 17684291 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 2122113720 is about 46066.4055467756. The cubic root of 2122113720 is about 1285.0584579784.

Adding to 2122113720 its reverse (273112212), we get a palindrome (2395225932).

The spelling of 2122113720 in words is "two billion, one hundred twenty-two million, one hundred thirteen thousand, seven hundred twenty".