212021100199 has 8 divisors (see below), whose sum is σ = 218865841280. Its totient is φ = 205176693600.

The previous prime is 212021100173. The next prime is 212021100253. The reversal of 212021100199 is 991001120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212021100199 - 2²¹ = 212019003047 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 (212021100799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163637 + ... + 2259505.

It is an arithmetic number, because the mean of its divisors is an integer number (27358230160).

Almost surely, 2^212021100199 is an apocalyptic number.

212021100199 is a deficient number, since it is larger than the sum of its proper divisors (6844741081).

212021100199 is an equidigital number, since it uses as much as digits as its factorization.

212021100199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167241.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 212021100199 in words is "two hundred twelve billion, twenty-one million, one hundred thousand, one hundred ninety-nine".