212021121120199 has 2 divisors, whose sum is σ = 212021121120200. Its totient is φ = 212021121120198.

The previous prime is 212021121120197. The next prime is 212021121120217. The reversal of 212021121120199 is 991021121120212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021121120199 - 2¹ = 212021121120197 is a prime.

Together with 212021121120197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021121120197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010560560099 + 106010560560100.

It is an arithmetic number, because the mean of its divisors is an integer number (106010560560100).

Almost surely, 2^{212021121120199} is an apocalyptic number.

212021121120199 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021121120199 is an equidigital number, since it uses as much as digits as its factorization.

212021121120199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 212021121120199 in words is "two hundred twelve trillion, twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, one hundred ninety-nine".