22121331121 has 8 divisors (see below), whose sum is σ = 22152108384. Its totient is φ = 22090578240.

The previous prime is 22121331103. The next prime is 22121331149. The reversal of 22121331121 is 12113312122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22121331121 - 2¹⁹ = 22120806833 is a prime.

It is a super-3 number, since 3×22121331121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121331151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2435230 + ... + 2444296.

It is an arithmetic number, because the mean of its divisors is an integer number (2769013548).

Almost surely, 2^22121331121 is an apocalyptic number.

It is an amenable number.

22121331121 is a deficient number, since it is larger than the sum of its proper divisors (30777263).

22121331121 is a wasteful number, since it uses less digits than its factorization.

22121331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12191.

The product of its digits is 144, while the sum is 19.

Adding to 22121331121 its reverse (12113312122), we get a palindrome (34234643243).

The spelling of 22121331121 in words is "twenty-two billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred twenty-one".