22412197 has 2 divisors, whose sum is σ = 22412198. Its totient is φ = 22412196.

The previous prime is 22412183. The next prime is 22412213. The reversal of 22412197 is 79121422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 11082241 = 3366^2 + 3329^2 .

It is a cyclic number.

It is not a de Polignac number, because 22412197 - 2¹⁹ = 21887909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22412107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11206098 + 11206099.

It is an arithmetic number, because the mean of its divisors is an integer number (11206099).

Almost surely, 2^22412197 is an apocalyptic number.

It is an amenable number.

22412197 is a deficient number, since it is larger than the sum of its proper divisors (1).

22412197 is an equidigital number, since it uses as much as digits as its factorization.

22412197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 22412197 is about 4734.1521944272. The cubic root of 22412197 is about 281.9431042267.

It can be divided in two parts, 224 and 12197, that added together give a palindrome (12421).

The spelling of 22412197 in words is "twenty-two million, four hundred twelve thousand, one hundred ninety-seven".