2132022721 has 2 divisors, whose sum is σ = 2132022722. Its totient is φ = 2132022720.

The previous prime is 2132022713. The next prime is 2132022779. The reversal of 2132022721 is 1272202312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1549524496 + 582498225 = 39364^2 + 24135^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132022721 - 2³ = 2132022713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2132022692 and 2132022701.

It is not a weakly prime, because it can be changed into another prime (2132022821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066011360 + 1066011361.

It is an arithmetic number, because the mean of its divisors is an integer number (1066011361).

Almost surely, 2^2132022721 is an apocalyptic number.

It is an amenable number.

2132022721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132022721 is an equidigital number, since it uses as much as digits as its factorization.

2132022721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2132022721 is about 46173.8315607444. The cubic root of 2132022721 is about 1287.0555041590.

The spelling of 2132022721 in words is "two billion, one hundred thirty-two million, twenty-two thousand, seven hundred twenty-one".