22202423 has 2 divisors, whose sum is σ = 22202424. Its totient is φ = 22202422.

The previous prime is 22202419. The next prime is 22202437. The reversal of 22202423 is 32420222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22202423 - 2² = 22202419 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22202473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101211 + 11101212.

It is an arithmetic number, because the mean of its divisors is an integer number (11101212).

Almost surely, 2^22202423 is an apocalyptic number.

22202423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202423 is an equidigital number, since it uses as much as digits as its factorization.

22202423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22202423 is about 4711.9447152954. The cubic root of 22202423 is about 281.0607004036.

Adding to 22202423 its reverse (32420222), we get a palindrome (54622645).

The spelling of 22202423 in words is "twenty-two million, two hundred two thousand, four hundred twenty-three".