22202087 has 2 divisors, whose sum is σ = 22202088. Its totient is φ = 22202086.

The previous prime is 22202077. The next prime is 22202093. The reversal of 22202087 is 78020222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22202087 - 2¹² = 22197991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22202027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101043 + 11101044.

It is an arithmetic number, because the mean of its divisors is an integer number (11101044).

Almost surely, 2^22202087 is an apocalyptic number.

22202087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202087 is an equidigital number, since it uses as much as digits as its factorization.

22202087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 22202087 is about 4711.9090610919. The cubic root of 22202087 is about 281.0592825873.

The spelling of 22202087 in words is "twenty-two million, two hundred two thousand, eighty-seven".