22221259 has 2 divisors, whose sum is σ = 22221260. Its totient is φ = 22221258.

The previous prime is 22221247. The next prime is 22221299. The reversal of 22221259 is 95212222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221259 is a prime.

It is not a weakly prime, because it can be changed into another prime (22221209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110629 + 11110630.

It is an arithmetic number, because the mean of its divisors is an integer number (11110630).

Almost surely, 2^22221259 is an apocalyptic number.

22221259 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221259 is an equidigital number, since it uses as much as digits as its factorization.

22221259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 22221259 is about 4713.9430416584. The cubic root of 22221259 is about 281.1401596431.

It can be divided in two parts, 2222 and 1259, that added together give a square (3481 = 59²).

The spelling of 22221259 in words is "twenty-two million, two hundred twenty-one thousand, two hundred fifty-nine".