22011149 has 2 divisors, whose sum is σ = 22011150. Its totient is φ = 22011148.

The previous prime is 22011131. The next prime is 22011151. The reversal of 22011149 is 94111022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14115049 + 7896100 = 3757^2 + 2810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011149 is a prime.

Together with 22011151, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22011149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22011109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005574 + 11005575.

It is an arithmetic number, because the mean of its divisors is an integer number (11005575).

Almost surely, 2^22011149 is an apocalyptic number.

It is an amenable number.

22011149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011149 is an equidigital number, since it uses as much as digits as its factorization.

22011149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 22011149 is about 4691.6040966816. The cubic root of 22011149 is about 280.2512583092.

The spelling of 22011149 in words is "twenty-two million, eleven thousand, one hundred forty-nine".