22011001121 has 16 divisors (see below), whose sum is σ = 22744001280. Its totient is φ = 21289080960.

The previous prime is 22011001097. The next prime is 22011001147. The reversal of 22011001121 is 12110011022.

It is a cyclic number.

It is not a de Polignac number, because 22011001121 - 2²² = 22006806817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22011001721) 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 15 ways as a sum of consecutive naturals, for example, 1854221 + ... + 1866053.

It is an arithmetic number, because the mean of its divisors is an integer number (1421500080).

Almost surely, 2^22011001121 is an apocalyptic number.

It is an amenable number.

22011001121 is a deficient number, since it is larger than the sum of its proper divisors (733000159).

22011001121 is a wasteful number, since it uses less digits than its factorization.

22011001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12296.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22011001121 its reverse (12110011022), we get a palindrome (34121012143).

Subtracting from 22011001121 its reverse (12110011022), we obtain a palindrome (9900990099).

The spelling of 22011001121 in words is "twenty-two billion, eleven million, one thousand, one hundred twenty-one".