22121211131 has 8 divisors (see below), whose sum is σ = 22353831360. Its totient is φ = 21888684288.

The previous prime is 22121211103. The next prime is 22121211143. The reversal of 22121211131 is 13111212122.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22121211131 is a prime.

It is a super-2 number, since 2×22121211131² (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 (22121211181) 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 7 ways as a sum of consecutive naturals, for example, 518510 + ... + 559548.

It is an arithmetic number, because the mean of its divisors is an integer number (2794228920).

Almost surely, 2^22121211131 is an apocalyptic number.

22121211131 is a deficient number, since it is larger than the sum of its proper divisors (232620229).

22121211131 is an equidigital number, since it uses as much as digits as its factorization.

22121211131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46693.

The product of its digits is 48, while the sum is 17.

Adding to 22121211131 its reverse (13111212122), we get a palindrome (35232423253).

Subtracting from 22121211131 its reverse (13111212122), we obtain a palindrome (9009999009).

The spelling of 22121211131 in words is "twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, one hundred thirty-one".