122249651 has 2 divisors, whose sum is σ = 122249652. Its totient is φ = 122249650.

The previous prime is 122249627. The next prime is 122249657. The reversal of 122249651 is 156942221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122249651 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122249657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61124825 + 61124826.

It is an arithmetic number, because the mean of its divisors is an integer number (61124826).

Almost surely, 2^122249651 is an apocalyptic number.

122249651 is a deficient number, since it is larger than the sum of its proper divisors (1).

122249651 is an equidigital number, since it uses as much as digits as its factorization.

122249651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 122249651 is about 11056.6564114112. The cubic root of 122249651 is about 496.3056386170.

The spelling of 122249651 in words is "one hundred twenty-two million, two hundred forty-nine thousand, six hundred fifty-one".