122150571461 has 16 divisors (see below), whose sum is σ = 130311782640. Its totient is φ = 114100976640.

The previous prime is 122150571443. The next prime is 122150571469. The reversal of 122150571461 is 164175051221.

It can be written as a sum of positive squares in 8 ways, for example, as 1901832100 + 120248739361 = 43610^2 + 346769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122150571461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122150571469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1184591 + ... + 1283571.

It is an arithmetic number, because the mean of its divisors is an integer number (8144486415).

Almost surely, 2^122150571461 is an apocalyptic number.

It is an amenable number.

122150571461 is a deficient number, since it is larger than the sum of its proper divisors (8161211179).

122150571461 is a wasteful number, since it uses less digits than its factorization.

122150571461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99544.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 122150571461 in words is "one hundred twenty-two billion, one hundred fifty million, five hundred seventy-one thousand, four hundred sixty-one".