212021100799 has 2 divisors, whose sum is σ = 212021100800. Its totient is φ = 212021100798.

The previous prime is 212021100763. The next prime is 212021100817. The reversal of 212021100799 is 997001120212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021100799 - 2⁹ = 212021100287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021170799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010550399 + 106010550400.

It is an arithmetic number, because the mean of its divisors is an integer number (106010550400).

Almost surely, 2^212021100799 is an apocalyptic number.

212021100799 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021100799 is an equidigital number, since it uses as much as digits as its factorization.

212021100799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 212021100799 in words is "two hundred twelve billion, twenty-one million, one hundred thousand, seven hundred ninety-nine".