2122199951 has 2 divisors, whose sum is σ = 2122199952. Its totient is φ = 2122199950.

The previous prime is 2122199923. The next prime is 2122199957. The reversal of 2122199951 is 1599912212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122199951 - 2³⁰ = 1048458127 is a prime.

It is a Sophie Germain prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 2122199899 and 2122199908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122199957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061099975 + 1061099976.

It is an arithmetic number, because the mean of its divisors is an integer number (1061099976).

Almost surely, 2^2122199951 is an apocalyptic number.

2122199951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122199951 is an equidigital number, since it uses as much as digits as its factorization.

2122199951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29160, while the sum is 41.

The square root of 2122199951 is about 46067.3414796209. The cubic root of 2122199951 is about 1285.0758636392.

The spelling of 2122199951 in words is "two billion, one hundred twenty-two million, one hundred ninety-nine thousand, nine hundred fifty-one".