2162120651 has 2 divisors, whose sum is σ = 2162120652. Its totient is φ = 2162120650.

The previous prime is 2162120603. The next prime is 2162120659. The reversal of 2162120651 is 1560212612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2162120651 - 2¹⁰ = 2162119627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2162120651.

It is not a weakly prime, because it can be changed into another prime (2162120659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081060325 + 1081060326.

It is an arithmetic number, because the mean of its divisors is an integer number (1081060326).

Almost surely, 2^2162120651 is an apocalyptic number.

2162120651 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162120651 is an equidigital number, since it uses as much as digits as its factorization.

2162120651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2162120651 is about 46498.6091297363. The cubic root of 2162120651 is about 1293.0837130658.

The spelling of 2162120651 in words is "two billion, one hundred sixty-two million, one hundred twenty thousand, six hundred fifty-one".