122113110320021 has 4 divisors (see below), whose sum is σ = 122132361959712. Its totient is φ = 122093858680332.

The previous prime is 122113110319961. The next prime is 122113110320059. The reversal of 122113110320021 is 120023011311221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122113110320021 - 2⁶ = 122113110319957 is a prime.

It is a super-2 number, since 2×122113110320021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122113110319975 and 122113110320002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122113110323021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9625810331 + ... + 9625823016.

It is an arithmetic number, because the mean of its divisors is an integer number (30533090489928).

Almost surely, 2^{122113110320021} is an apocalyptic number.

It is an amenable number.

122113110320021 is a deficient number, since it is larger than the sum of its proper divisors (19251639691).

122113110320021 is an equidigital number, since it uses as much as digits as its factorization.

122113110320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19251639690.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 122113110320021 its reverse (120023011311221), we get a palindrome (242136121631242).

The spelling of 122113110320021 in words is "one hundred twenty-two trillion, one hundred thirteen billion, one hundred ten million, three hundred twenty thousand, twenty-one".