122116130621 has 8 divisors (see below), whose sum is σ = 122323817304. Its totient is φ = 121908508480.

The previous prime is 122116130581. The next prime is 122116130623. The reversal of 122116130621 is 126031611221.

It can be written as a sum of positive squares in 4 ways, for example, as 20281747396 + 101834383225 = 142414^2 + 319115^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122116130621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122116130623) 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, 5131811 + ... + 5155551.

It is an arithmetic number, because the mean of its divisors is an integer number (15290477163).

Almost surely, 2^122116130621 is an apocalyptic number.

It is an amenable number.

122116130621 is a deficient number, since it is larger than the sum of its proper divisors (207686683).

122116130621 is an equidigital number, since it uses as much as digits as its factorization.

122116130621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32271.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 122116130621 its reverse (126031611221), we get a palindrome (248147741842).

The spelling of 122116130621 in words is "one hundred twenty-two billion, one hundred sixteen million, one hundred thirty thousand, six hundred twenty-one".