212203087 has 2 divisors, whose sum is σ = 212203088. Its totient is φ = 212203086.

The previous prime is 212203021. The next prime is 212203093. The reversal of 212203087 is 780302212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212203087 - 2¹¹ = 212201039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212203007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106101543 + 106101544.

It is an arithmetic number, because the mean of its divisors is an integer number (106101544).

Almost surely, 2^212203087 is an apocalyptic number.

212203087 is a deficient number, since it is larger than the sum of its proper divisors (1).

212203087 is an equidigital number, since it uses as much as digits as its factorization.

212203087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 212203087 is about 14567.1921453656. The cubic root of 212203087 is about 596.4635364772.

Adding to 212203087 its reverse (780302212), we get a palindrome (992505299).

The spelling of 212203087 in words is "two hundred twelve million, two hundred three thousand, eighty-seven".