222120212087 has 2 divisors, whose sum is σ = 222120212088. Its totient is φ = 222120212086.

The previous prime is 222120212081. The next prime is 222120212143. The reversal of 222120212087 is 780212021222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222120212087 - 2¹⁸ = 222119949943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222120212081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060106043 + 111060106044.

It is an arithmetic number, because the mean of its divisors is an integer number (111060106044).

Almost surely, 2^222120212087 is an apocalyptic number.

222120212087 is a deficient number, since it is larger than the sum of its proper divisors (1).

222120212087 is an equidigital number, since it uses as much as digits as its factorization.

222120212087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

The spelling of 222120212087 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred twelve thousand, eighty-seven".