10402220251 has 2 divisors, whose sum is σ = 10402220252. Its totient is φ = 10402220250.

The previous prime is 10402220201. The next prime is 10402220303. The reversal of 10402220251 is 15202220401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10402220251 - 2³¹ = 8254736603 is a prime.

It is not a weakly prime, because it can be changed into another prime (10402220201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201110125 + 5201110126.

It is an arithmetic number, because the mean of its divisors is an integer number (5201110126).

Almost surely, 2^10402220251 is an apocalyptic number.

10402220251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10402220251 is an equidigital number, since it uses as much as digits as its factorization.

10402220251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 10402220251 its reverse (15202220401), we get a palindrome (25604440652).

The spelling of 10402220251 in words is "ten billion, four hundred two million, two hundred twenty thousand, two hundred fifty-one".