22011131 has 2 divisors, whose sum is σ = 22011132. Its totient is φ = 22011130.

The previous prime is 22011113. The next prime is 22011149. The reversal of 22011131 is 13111022.

Together with previous prime (22011113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (22011113) and next prime (22011149).

It is a cyclic number.

It is not a de Polignac number, because 22011131 - 2¹⁴ = 21994747 is a prime.

It is a super-2 number, since 2×22011131² = 968979775798322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22011151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005565 + 11005566.

It is an arithmetic number, because the mean of its divisors is an integer number (11005566).

Almost surely, 2^22011131 is an apocalyptic number.

22011131 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011131 is an equidigital number, since it uses as much as digits as its factorization.

22011131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 22011131 is about 4691.6021783608. The cubic root of 22011131 is about 280.2511819157.

Adding to 22011131 its reverse (13111022), we get a palindrome (35122153).

The spelling of 22011131 in words is "twenty-two million, eleven thousand, one hundred thirty-one".