22120393 has 2 divisors, whose sum is σ = 22120394. Its totient is φ = 22120392.

The previous prime is 22120381. The next prime is 22120433. The reversal of 22120393 is 39302122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14235529 + 7884864 = 3773^2 + 2808^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120393 - 2¹³ = 22112201 is a prime.

It is not a weakly prime, because it can be changed into another prime (22120303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060196 + 11060197.

It is an arithmetic number, because the mean of its divisors is an integer number (11060197).

Almost surely, 2^22120393 is an apocalyptic number.

It is an amenable number.

22120393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120393 is an equidigital number, since it uses as much as digits as its factorization.

22120393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 22120393 is about 4703.2321864862. The cubic root of 22120393 is about 280.7141337022.

The spelling of 22120393 in words is "twenty-two million, one hundred twenty thousand, three hundred ninety-three".