222002087 has 4 divisors (see below), whose sum is σ = 224812320. Its totient is φ = 219191856.

The previous prime is 222002071. The next prime is 222002089. The reversal of 222002087 is 780200222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222002087 - 2⁴ = 222002071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002089) 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 in 3 ways as a sum of consecutive naturals, for example, 1404998 + ... + 1405155.

It is an arithmetic number, because the mean of its divisors is an integer number (56203080).

Almost surely, 2^222002087 is an apocalyptic number.

222002087 is a deficient number, since it is larger than the sum of its proper divisors (2810233).

222002087 is an equidigital number, since it uses as much as digits as its factorization.

222002087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810232.

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

The square root of 222002087 is about 14899.7344607211. The cubic root of 222002087 is about 605.5067920757.

The spelling of 222002087 in words is "two hundred twenty-two million, two thousand, eighty-seven".