122012221222021 has 8 divisors (see below), whose sum is σ = 131410826576120. Its totient is φ = 112615480135872.

The previous prime is 122012221222007. The next prime is 122012221222079. The reversal of 122012221222021 is 120222122210221.

It can be written as a sum of positive squares in 4 ways, for example, as 6911272944900 + 115100948277121 = 2628930^2 + 10728511^2 .

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 122012221222021 - 2²⁵ = 122012187667589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122012221221983 and 122012221222001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012221222321) 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, 465931050 + ... + 466192843.

It is an arithmetic number, because the mean of its divisors is an integer number (16426353322015).

Almost surely, 2^{122012221222021} is an apocalyptic number.

It is an amenable number.

122012221222021 is a deficient number, since it is larger than the sum of its proper divisors (9398605354099).

122012221222021 is a wasteful number, since it uses less digits than its factorization.

122012221222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932133975.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 122012221222021 its reverse (120222122210221), we get a palindrome (242234343432242).

The spelling of 122012221222021 in words is "one hundred twenty-two trillion, twelve billion, two hundred twenty-one million, two hundred twenty-two thousand, twenty-one".