2551121299 has 2 divisors, whose sum is σ = 2551121300. Its totient is φ = 2551121298.

The previous prime is 2551121297. The next prime is 2551121351. The reversal of 2551121299 is 9921211552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551121299 - 2¹ = 2551121297 is a prime.

It is a super-2 number, since 2×2551121299² = 13016439764422894802, which contains 22 as substring.

Together with 2551121297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2551121297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275560649 + 1275560650.

It is an arithmetic number, because the mean of its divisors is an integer number (1275560650).

Almost surely, 2^2551121299 is an apocalyptic number.

2551121299 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551121299 is an equidigital number, since it uses as much as digits as its factorization.

2551121299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 37.

The square root of 2551121299 is about 50508.6259860630. The cubic root of 2551121299 is about 1366.3974291031.

The spelling of 2551121299 in words is "two billion, five hundred fifty-one million, one hundred twenty-one thousand, two hundred ninety-nine".