22210122121 has 4 divisors (see below), whose sum is σ = 24229224144. Its totient is φ = 20191020100.

The previous prime is 22210122113. The next prime is 22210122131. The reversal of 22210122121 is 12122101222.

It is a happy number.

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 22210122121 - 2³ = 22210122113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22210122095 and 22210122104.

It is not an unprimeable number, because it can be changed into a prime (22210122131) 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, 1009550995 + ... + 1009551016.

It is an arithmetic number, because the mean of its divisors is an integer number (6057306036).

Almost surely, 2^22210122121 is an apocalyptic number.

It is an amenable number.

22210122121 is a deficient number, since it is larger than the sum of its proper divisors (2019102023).

22210122121 is a wasteful number, since it uses less digits than its factorization.

22210122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019102022.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22210122121 its reverse (12122101222), we get a palindrome (34332223343).

The spelling of 22210122121 in words is "twenty-two billion, two hundred ten million, one hundred twenty-two thousand, one hundred twenty-one".