112201220122021 has 2 divisors, whose sum is σ = 112201220122022. Its totient is φ = 112201220122020.

The previous prime is 112201220121983. The next prime is 112201220122067. The reversal of 112201220122021 is 120221022102211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79409734953796 + 32791485168225 = 8911214^2 + 5726385^2 .

It is an emirp because it is prime and its reverse (120221022102211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112201220122021 - 2²⁹ = 112200683251109 is a prime.

It is a super-2 number, since 2×112201220122021² (a number of 29 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 112201220122021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112201220192021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56100610061010 + 56100610061011.

It is an arithmetic number, because the mean of its divisors is an integer number (56100610061011).

Almost surely, 2^{112201220122021} is an apocalyptic number.

It is an amenable number.

112201220122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112201220122021 is an equidigital number, since it uses as much as digits as its factorization.

112201220122021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 112201220122021 its reverse (120221022102211), we get a palindrome (232422242224232).

The spelling of 112201220122021 in words is "one hundred twelve trillion, two hundred one billion, two hundred twenty million, one hundred twenty-two thousand, twenty-one".