22121043131 has 8 divisors (see below), whose sum is σ = 24181201728. Its totient is φ = 20069077000.

The previous prime is 22121043121. The next prime is 22121043143. The reversal of 22121043131 is 13134012122.

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 22121043131 - 2³⁰ = 21047301307 is a prime.

It is a super-2 number, since 2×22121043131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121043121) 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, 2042465 + ... + 2053266.

It is an arithmetic number, because the mean of its divisors is an integer number (3022650216).

Almost surely, 2^22121043131 is an apocalyptic number.

22121043131 is a deficient number, since it is larger than the sum of its proper divisors (2060158597).

22121043131 is a wasteful number, since it uses less digits than its factorization.

22121043131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096233.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22121043131 its reverse (13134012122), we get a palindrome (35255055253).

The spelling of 22121043131 in words is "twenty-two billion, one hundred twenty-one million, forty-three thousand, one hundred thirty-one".