212049994 has 32 divisors (see below), whose sum is σ = 368282880. Its totient is φ = 90735552.

The previous prime is 212049989. The next prime is 212050019. The reversal of 212049994 is 499940212.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18652 + ... + 27784.

It is an arithmetic number, because the mean of its divisors is an integer number (11508840).

Almost surely, 2^212049994 is an apocalyptic number.

212049994 is a deficient number, since it is larger than the sum of its proper divisors (156232886).

212049994 is a wasteful number, since it uses less digits than its factorization.

212049994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9214.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 212049994 is about 14561.9364783672. The cubic root of 212049994 is about 596.3200632888.

The spelling of 212049994 in words is "two hundred twelve million, forty-nine thousand, nine hundred ninety-four".