122112021513 has 8 divisors (see below), whose sum is σ = 172393442208. Its totient is φ = 76619307584.

The previous prime is 122112021511. The next prime is 122112021529. The reversal of 122112021513 is 315120211221.

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 122112021513 - 2¹ = 122112021511 is a prime.

It is a super-2 number, since 2×122112021513² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122112021513.

It is not an unprimeable number, because it can be changed into a prime (122112021511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197176631 + ... + 1197176732.

It is an arithmetic number, because the mean of its divisors is an integer number (21549180276).

Almost surely, 2^122112021513 is an apocalyptic number.

It is an amenable number.

122112021513 is a deficient number, since it is larger than the sum of its proper divisors (50281420695).

122112021513 is a wasteful number, since it uses less digits than its factorization.

122112021513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394353383.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 122112021513 its reverse (315120211221), we get a palindrome (437232232734).

The spelling of 122112021513 in words is "one hundred twenty-two billion, one hundred twelve million, twenty-one thousand, five hundred thirteen".