22220001449 has 2 divisors, whose sum is σ = 22220001450. Its totient is φ = 22220001448.

The previous prime is 22220001443. The next prime is 22220001511. The reversal of 22220001449 is 94410002222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21972725824 + 247275625 = 148232^2 + 15725^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220001449 - 2²⁴ = 22203224233 is a prime.

It is not a weakly prime, because it can be changed into another prime (22220001443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110000724 + 11110000725.

It is an arithmetic number, because the mean of its divisors is an integer number (11110000725).

Almost surely, 2^22220001449 is an apocalyptic number.

It is an amenable number.

22220001449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220001449 is an equidigital number, since it uses as much as digits as its factorization.

22220001449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 22220001449 in words is "twenty-two billion, two hundred twenty million, one thousand, four hundred forty-nine".