22022022121 has 4 divisors (see below), whose sum is σ = 24024024144. Its totient is φ = 20020020100.

The previous prime is 22022022101. The next prime is 22022022151. The reversal of 22022022121 is 12122022022.

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 22022022121 - 2⁵ = 22022022089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22022022095 and 22022022104.

It is not an unprimeable number, because it can be changed into a prime (22022022101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001000995 + ... + 1001001016.

It is an arithmetic number, because the mean of its divisors is an integer number (6006006036).

Almost surely, 2^22022022121 is an apocalyptic number.

It is an amenable number.

22022022121 is a deficient number, since it is larger than the sum of its proper divisors (2002002023).

22022022121 is a wasteful number, since it uses less digits than its factorization.

22022022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002002022.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22022022121 its reverse (12122022022), we get a palindrome (34144044143).

Subtracting from 22022022121 its reverse (12122022022), we obtain a palindrome (9900000099).

It can be divided in two parts, 22022022 and 121, that multiplied together give a palindrome (2664664662).

The spelling of 22022022121 in words is "twenty-two billion, twenty-two million, twenty-two thousand, one hundred twenty-one".