212299994 has 8 divisors (see below), whose sum is σ = 318890208. Its totient is φ = 106003260.

The previous prime is 212299991. The next prime is 212300021. The reversal of 212299994 is 499992212.

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

It is not an unprimeable number, because it can be changed into a prime (212299991) 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, 71552 + ... + 74459.

It is an arithmetic number, because the mean of its divisors is an integer number (39861276).

Almost surely, 2^212299994 is an apocalyptic number.

212299994 is a deficient number, since it is larger than the sum of its proper divisors (106590214).

212299994 is a wasteful number, since it uses less digits than its factorization.

212299994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146740.

The product of its digits is 209952, while the sum is 47.

The square root of 212299994 is about 14570.5179729480. The cubic root of 212299994 is about 596.5543185298.

The spelling of 212299994 in words is "two hundred twelve million, two hundred ninety-nine thousand, nine hundred ninety-four".