22071530449 has 2 divisors, whose sum is σ = 22071530450. Its totient is φ = 22071530448.

The previous prime is 22071530401. The next prime is 22071530461. The reversal of 22071530449 is 94403517022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22070073600 + 1456849 = 148560^2 + 1207^2 .

It is a cyclic number.

It is not a de Polignac number, because 22071530449 - 2⁹ = 22071529937 is a prime.

It is a super-2 number, since 2×22071530449² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22071530149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11035765224 + 11035765225.

It is an arithmetic number, because the mean of its divisors is an integer number (11035765225).

Almost surely, 2^22071530449 is an apocalyptic number.

It is an amenable number.

22071530449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22071530449 is an equidigital number, since it uses as much as digits as its factorization.

22071530449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 22071530449 in words is "twenty-two billion, seventy-one million, five hundred thirty thousand, four hundred forty-nine".