212220199 has 4 divisors (see below), whose sum is σ = 212260936. Its totient is φ = 212179464.

The previous prime is 212220191. The next prime is 212220247. The reversal of 212220199 is 991022212.

212220199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 212220199 - 2³ = 212220191 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 (212220191) 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, 11169 + ... + 23434.

It is an arithmetic number, because the mean of its divisors is an integer number (53065234).

Almost surely, 2^212220199 is an apocalyptic number.

212220199 is a deficient number, since it is larger than the sum of its proper divisors (40737).

212220199 is an equidigital number, since it uses as much as digits as its factorization.

212220199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40736.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 212220199 is about 14567.7794807582. The cubic root of 212220199 is about 596.4795689328.

The spelling of 212220199 in words is "two hundred twelve million, two hundred twenty thousand, one hundred ninety-nine".