122992641217 has 8 divisors (see below), whose sum is σ = 123101358120. Its totient is φ = 122883974400.

The previous prime is 122992641209. The next prime is 122992641251. The reversal of 122992641217 is 712146299221.

It can be written as a sum of positive squares in 4 ways, for example, as 60337044496 + 62655596721 = 245636^2 + 250311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122992641217 - 2³ = 122992641209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122992641287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6174009 + ... + 6193897.

It is an arithmetic number, because the mean of its divisors is an integer number (15387669765).

Almost surely, 2^122992641217 is an apocalyptic number.

It is an amenable number.

122992641217 is a deficient number, since it is larger than the sum of its proper divisors (108716903).

122992641217 is a wasteful number, since it uses less digits than its factorization.

122992641217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25043.

The product of its digits is 217728, while the sum is 46.

The spelling of 122992641217 in words is "one hundred twenty-two billion, nine hundred ninety-two million, six hundred forty-one thousand, two hundred seventeen".