22021159 has 2 divisors, whose sum is σ = 22021160. Its totient is φ = 22021158.

The previous prime is 22021151. The next prime is 22021163. The reversal of 22021159 is 95112022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22021159 - 2³ = 22021151 is a prime.

It is equal to p_1390504 and since 22021159 and 1390504 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010579 + 11010580.

It is an arithmetic number, because the mean of its divisors is an integer number (11010580).

Almost surely, 2^22021159 is an apocalyptic number.

22021159 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021159 is an equidigital number, since it uses as much as digits as its factorization.

22021159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 22021159 is about 4692.6707747295. The cubic root of 22021159 is about 280.2937351156.

The spelling of 22021159 in words is "twenty-two million, twenty-one thousand, one hundred fifty-nine".