122661922511 has 2 divisors, whose sum is σ = 122661922512. Its totient is φ = 122661922510.

The previous prime is 122661922463. The next prime is 122661922517. The reversal of 122661922511 is 115229166221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122661922511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122661922517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61330961255 + 61330961256.

It is an arithmetic number, because the mean of its divisors is an integer number (61330961256).

Almost surely, 2^122661922511 is an apocalyptic number.

122661922511 is a deficient number, since it is larger than the sum of its proper divisors (1).

122661922511 is an equidigital number, since it uses as much as digits as its factorization.

122661922511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The spelling of 122661922511 in words is "one hundred twenty-two billion, six hundred sixty-one million, nine hundred twenty-two thousand, five hundred eleven".