122012122012021 has 8 divisors (see below), whose sum is σ = 122156069996160. Its totient is φ = 121868205901728.

The previous prime is 122012122011977. The next prime is 122012122012051. The reversal of 122012122012021 is 120210221210221.

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 122012122012021 - 2⁷ = 122012122011893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122012122012021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012122012051) 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, 303661 + ... + 15624226.

It is an arithmetic number, because the mean of its divisors is an integer number (15269508749520).

Almost surely, 2^{122012122012021} is an apocalyptic number.

It is an amenable number.

122012122012021 is a deficient number, since it is larger than the sum of its proper divisors (143947984139).

122012122012021 is an equidigital number, since it uses as much as digits as its factorization.

122012122012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936923.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122012122012021 its reverse (120210221210221), we get a palindrome (242222343222242).

The spelling of 122012122012021 in words is "one hundred twenty-two trillion, twelve billion, one hundred twenty-two million, twelve thousand, twenty-one".