22021127131 has 2 divisors, whose sum is σ = 22021127132. Its totient is φ = 22021127130.

The previous prime is 22021127111. The next prime is 22021127143. The reversal of 22021127131 is 13172112022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021127131 is a prime.

It is a super-2 number, since 2×22021127131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22021127111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010563565 + 11010563566.

It is an arithmetic number, because the mean of its divisors is an integer number (11010563566).

Almost surely, 2^22021127131 is an apocalyptic number.

22021127131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021127131 is an equidigital number, since it uses as much as digits as its factorization.

22021127131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 22021127131 its reverse (13172112022), we get a palindrome (35193239153).

The spelling of 22021127131 in words is "twenty-two billion, twenty-one million, one hundred twenty-seven thousand, one hundred thirty-one".