212422099 has 4 divisors (see below), whose sum is σ = 213775264. Its totient is φ = 211068936.

The previous prime is 212422087. The next prime is 212422127. The reversal of 212422099 is 990224212.

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 212422099 - 2⁷ = 212421971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212422099.

It is not an unprimeable number, because it can be changed into a prime (212422799) 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, 676347 + ... + 676660.

It is an arithmetic number, because the mean of its divisors is an integer number (53443816).

Almost surely, 2^212422099 is an apocalyptic number.

212422099 is a deficient number, since it is larger than the sum of its proper divisors (1353165).

212422099 is a wasteful number, since it uses less digits than its factorization.

212422099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353164.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 212422099 is about 14574.7075099297. The cubic root of 212422099 is about 596.6686666322.

The spelling of 212422099 in words is "two hundred twelve million, four hundred twenty-two thousand, ninety-nine".