212211587933 has 2 divisors, whose sum is σ = 212211587934. Its totient is φ = 212211587932.

The previous prime is 212211587893. The next prime is 212211587947. The reversal of 212211587933 is 339785112212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186669794809 + 25541793124 = 432053^2 + 159818^2 .

It is a cyclic number.

It is not a de Polignac number, because 212211587933 - 2⁸ = 212211587677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212211517933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105793966 + 106105793967.

It is an arithmetic number, because the mean of its divisors is an integer number (106105793967).

Almost surely, 2^212211587933 is an apocalyptic number.

It is an amenable number.

212211587933 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211587933 is an equidigital number, since it uses as much as digits as its factorization.

212211587933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The spelling of 212211587933 in words is "two hundred twelve billion, two hundred eleven million, five hundred eighty-seven thousand, nine hundred thirty-three".