22011444449 has 2 divisors, whose sum is σ = 22011444450. Its totient is φ = 22011444448.

The previous prime is 22011444443. The next prime is 22011444457. The reversal of 22011444449 is 94444411022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21795207424 + 216237025 = 147632^2 + 14705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22011444449 is a prime.

It is not a weakly prime, because it can be changed into another prime (22011444443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005722224 + 11005722225.

It is an arithmetic number, because the mean of its divisors is an integer number (11005722225).

Almost surely, 2^22011444449 is an apocalyptic number.

It is an amenable number.

22011444449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011444449 is an equidigital number, since it uses as much as digits as its factorization.

22011444449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 22011444449 in words is "twenty-two billion, eleven million, four hundred forty-four thousand, four hundred forty-nine".