7122501251 has 2 divisors, whose sum is σ = 7122501252. Its totient is φ = 7122501250.

The previous prime is 7122501233. The next prime is 7122501257. The reversal of 7122501251 is 1521052217.

7122501251 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7122501251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7122501251.

It is not a weakly prime, because it can be changed into another prime (7122501257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3561250625 + 3561250626.

It is an arithmetic number, because the mean of its divisors is an integer number (3561250626).

Almost surely, 2^7122501251 is an apocalyptic number.

7122501251 is a deficient number, since it is larger than the sum of its proper divisors (1).

7122501251 is an equidigital number, since it uses as much as digits as its factorization.

7122501251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 7122501251 is about 84394.9124710726. The cubic root of 7122501251 is about 1924.0255934106.

Adding to 7122501251 its reverse (1521052217), we get a palindrome (8643553468).

The spelling of 7122501251 in words is "seven billion, one hundred twenty-two million, five hundred one thousand, two hundred fifty-one".