2022121221121 has 4 divisors (see below), whose sum is σ = 2023311406000. Its totient is φ = 2020931036244.

The previous prime is 2022121221067. The next prime is 2022121221137. The reversal of 2022121221121 is 1211221212202.

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 2022121221121 - 2¹⁹ = 2022120696833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2022121221191) 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, 595089891 + ... + 595093288.

It is an arithmetic number, because the mean of its divisors is an integer number (505827851500).

Almost surely, 2^{2022121221121} is an apocalyptic number.

It is an amenable number.

2022121221121 is a deficient number, since it is larger than the sum of its proper divisors (1190184879).

2022121221121 is a wasteful number, since it uses less digits than its factorization.

2022121221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190184878.

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

Adding to 2022121221121 its reverse (1211221212202), we get a palindrome (3233342433323).

The spelling of 2022121221121 in words is "two trillion, twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-one".