212394212 has 12 divisors (see below), whose sum is σ = 371984256. Its totient is φ = 106113000.

The previous prime is 212394211. The next prime is 212394241. The reversal of 212394212 is 212493212.

It is a super-2 number, since 2×212394212² = 90222602582201888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (212394211) 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, 15164 + ... + 25587.

It is an arithmetic number, because the mean of its divisors is an integer number (30998688).

Almost surely, 2^212394212 is an apocalyptic number.

It is an amenable number.

212394212 is a deficient number, since it is larger than the sum of its proper divisors (159590044).

212394212 is a wasteful number, since it uses less digits than its factorization.

212394212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42058 (or 42056 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 212394212 is about 14573.7507869457. The cubic root of 212394212 is about 596.6425550563.

The spelling of 212394212 in words is "two hundred twelve million, three hundred ninety-four thousand, two hundred twelve".