212223223087 has 2 divisors, whose sum is σ = 212223223088. Its totient is φ = 212223223086.

The previous prime is 212223223039. The next prime is 212223223181. The reversal of 212223223087 is 780322322212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212223223087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212223523087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111611543 + 106111611544.

It is an arithmetic number, because the mean of its divisors is an integer number (106111611544).

Almost surely, 2^212223223087 is an apocalyptic number.

212223223087 is a deficient number, since it is larger than the sum of its proper divisors (1).

212223223087 is an equidigital number, since it uses as much as digits as its factorization.

212223223087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 212223223087 its reverse (780322322212), we get a palindrome (992545545299).

The spelling of 212223223087 in words is "two hundred twelve billion, two hundred twenty-three million, two hundred twenty-three thousand, eighty-seven".