22172002087 has 2 divisors, whose sum is σ = 22172002088. Its totient is φ = 22172002086.

The previous prime is 22172002043. The next prime is 22172002103. The reversal of 22172002087 is 78020027122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22172002087 - 2⁷ = 22172001959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22172009087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11086001043 + 11086001044.

It is an arithmetic number, because the mean of its divisors is an integer number (11086001044).

Almost surely, 2^22172002087 is an apocalyptic number.

22172002087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22172002087 is an equidigital number, since it uses as much as digits as its factorization.

22172002087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 31.

The spelling of 22172002087 in words is "twenty-two billion, one hundred seventy-two million, two thousand, eighty-seven".