212123192 has 16 divisors (see below), whose sum is σ = 398136600. Its totient is φ = 105953440.

The previous prime is 212123159. The next prime is 212123203. The reversal of 212123192 is 291321212.

It is a happy number.

212123192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859 + ... + 21162.

Almost surely, 2^212123192 is an apocalyptic number.

It is an amenable number.

212123192 is a deficient number, since it is larger than the sum of its proper divisors (186013408).

212123192 is a wasteful number, since it uses less digits than its factorization.

212123192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27046 (or 27042 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 212123192 is about 14564.4495948182. The cubic root of 212123192 is about 596.3886704030.

The spelling of 212123192 in words is "two hundred twelve million, one hundred twenty-three thousand, one hundred ninety-two".