122012122112021 has 4 divisors (see below), whose sum is σ = 122012150494752. Its totient is φ = 122012093729292.

The previous prime is 122012122111963. The next prime is 122012122112059. The reversal of 122012122112021 is 120211221210221.

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 122012122112021 - 2¹⁰ = 122012122110997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122012122111984 and 122012122112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012122117021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6268865 + ... + 16832198.

It is an arithmetic number, because the mean of its divisors is an integer number (30503037623688).

Almost surely, 2^{122012122112021} is an apocalyptic number.

It is an amenable number.

122012122112021 is a deficient number, since it is larger than the sum of its proper divisors (28382731).

122012122112021 is an equidigital number, since it uses as much as digits as its factorization.

122012122112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28382730.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122012122112021 its reverse (120211221210221), we get a palindrome (242223343322242).

The spelling of 122012122112021 in words is "one hundred twenty-two trillion, twelve billion, one hundred twenty-two million, one hundred twelve thousand, twenty-one".