212012101120999 has 4 divisors (see below), whose sum is σ = 212357960992936. Its totient is φ = 211666241249064.

The previous prime is 212012101120979. The next prime is 212012101121021. The reversal of 212012101120999 is 999021101210212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212012101120999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012101120909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172929935049 + ... + 172929936274.

It is an arithmetic number, because the mean of its divisors is an integer number (53089490248234).

Almost surely, 2^{212012101120999} is an apocalyptic number.

212012101120999 is a deficient number, since it is larger than the sum of its proper divisors (345859871937).

212012101120999 is an equidigital number, since it uses as much as digits as its factorization.

212012101120999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345859871936.

The product of its (nonzero) digits is 11664, while the sum is 40.

The spelling of 212012101120999 in words is "two hundred twelve trillion, twelve billion, one hundred one million, one hundred twenty thousand, nine hundred ninety-nine".