101222115251 has 2 divisors, whose sum is σ = 101222115252. Its totient is φ = 101222115250.

The previous prime is 101222115209. The next prime is 101222115299. The reversal of 101222115251 is 152511222101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101222115251 - 2⁶ = 101222115187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (101222315251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50611057625 + 50611057626.

It is an arithmetic number, because the mean of its divisors is an integer number (50611057626).

Almost surely, 2^101222115251 is an apocalyptic number.

101222115251 is a deficient number, since it is larger than the sum of its proper divisors (1).

101222115251 is an equidigital number, since it uses as much as digits as its factorization.

101222115251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 101222115251 its reverse (152511222101), we get a palindrome (253733337352).

The spelling of 101222115251 in words is "one hundred one billion, two hundred twenty-two million, one hundred fifteen thousand, two hundred fifty-one".