2122509427 has 2 divisors, whose sum is σ = 2122509428. Its totient is φ = 2122509426.

The previous prime is 2122509421. The next prime is 2122509451. The reversal of 2122509427 is 7249052212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122509427 - 2²³ = 2114120819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122509392 and 2122509401.

It is not a weakly prime, because it can be changed into another prime (2122509421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061254713 + 1061254714.

It is an arithmetic number, because the mean of its divisors is an integer number (1061254714).

Almost surely, 2^2122509427 is an apocalyptic number.

2122509427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122509427 is an equidigital number, since it uses as much as digits as its factorization.

2122509427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2122509427 is about 46070.7003094157. The cubic root of 2122509427 is about 1285.1383272488.

The spelling of 2122509427 in words is "two billion, one hundred twenty-two million, five hundred nine thousand, four hundred twenty-seven".