22212199 has 2 divisors, whose sum is σ = 22212200. Its totient is φ = 22212198.

The previous prime is 22212187. The next prime is 22212233. The reversal of 22212199 is 99121222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22212199 - 2⁹ = 22211687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22212109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106099 + 11106100.

It is an arithmetic number, because the mean of its divisors is an integer number (11106100).

Almost surely, 2^22212199 is an apocalyptic number.

22212199 is a deficient number, since it is larger than the sum of its proper divisors (1).

22212199 is an equidigital number, since it uses as much as digits as its factorization.

22212199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The square root of 22212199 is about 4712.9819647438. The cubic root of 22212199 is about 281.1019458453.

It can be divided in two parts, 222 and 12199, that added together give a palindrome (12421).

The spelling of 22212199 in words is "twenty-two million, two hundred twelve thousand, one hundred ninety-nine".