22000120121 has 48 divisors (see below), whose sum is σ = 28263738240. Its totient is φ = 16714114560.

The previous prime is 22000120073. The next prime is 22000120123. The reversal of 22000120121 is 12102100022.

It is a happy number.

It is not a de Polignac number, because 22000120121 - 2¹⁸ = 21999857977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000120123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7688231 + ... + 7691091.

It is an arithmetic number, because the mean of its divisors is an integer number (588827880).

Almost surely, 2^22000120121 is an apocalyptic number.

It is an amenable number.

22000120121 is a deficient number, since it is larger than the sum of its proper divisors (6263618119).

22000120121 is a wasteful number, since it uses less digits than its factorization.

22000120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102 (or 3083 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22000120121 its reverse (12102100022), we get a palindrome (34102220143).

The spelling of 22000120121 in words is "twenty-two billion, one hundred twenty thousand, one hundred twenty-one".