212120212 has 12 divisors (see below), whose sum is σ = 379108800. Its totient is φ = 103803416.

The previous prime is 212120201. The next prime is 212120221. The reversal of 212120212 is 212021212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212120192 and 212120201.

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, 563962 + ... + 564337.

It is an arithmetic number, because the mean of its divisors is an integer number (31592400).

Almost surely, 2^212120212 is an apocalyptic number.

It is an amenable number.

212120212 is a deficient number, since it is larger than the sum of its proper divisors (166988588).

212120212 is a wasteful number, since it uses less digits than its factorization.

212120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128350 (or 1128348 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 212120212 is about 14564.3472905585. The cubic root of 212120212 is about 596.3858776131.

Adding to 212120212 its reverse (212021212), we get a palindrome (424141424).

The spelling of 212120212 in words is "two hundred twelve million, one hundred twenty thousand, two hundred twelve".