122277240461 has 2 divisors, whose sum is σ = 122277240462. Its totient is φ = 122277240460.

The previous prime is 122277240439. The next prime is 122277240473. The reversal of 122277240461 is 164042772221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117206946025 + 5070294436 = 342355^2 + 71206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122277240461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122277270461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61138620230 + 61138620231.

It is an arithmetic number, because the mean of its divisors is an integer number (61138620231).

Almost surely, 2^122277240461 is an apocalyptic number.

It is an amenable number.

122277240461 is a deficient number, since it is larger than the sum of its proper divisors (1).

122277240461 is an equidigital number, since it uses as much as digits as its factorization.

122277240461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 122277240461 in words is "one hundred twenty-two billion, two hundred seventy-seven million, two hundred forty thousand, four hundred sixty-one".