22031222149 has 2 divisors, whose sum is σ = 22031222150. Its totient is φ = 22031222148.

The previous prime is 22031222111. The next prime is 22031222159. The reversal of 22031222149 is 94122213022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21961165249 + 70056900 = 148193^2 + 8370^2 .

It is a cyclic number.

It is not a de Polignac number, because 22031222149 - 2⁹ = 22031221637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22031222159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015611074 + 11015611075.

It is an arithmetic number, because the mean of its divisors is an integer number (11015611075).

Almost surely, 2^22031222149 is an apocalyptic number.

It is an amenable number.

22031222149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031222149 is an equidigital number, since it uses as much as digits as its factorization.

22031222149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 22031222149 in words is "twenty-two billion, thirty-one million, two hundred twenty-two thousand, one hundred forty-nine".