212255334 has 12 divisors (see below), whose sum is σ = 459886596. Its totient is φ = 70751772.

The previous prime is 212255297. The next prime is 212255341. The reversal of 212255334 is 433552212.

It is a happy number.

212255334 is a `hidden beast` number, since 2 + 122 + 5 + 533 + 4 = 666.

It is a super-2 number, since 2×212255334² = 90104653622903112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212255298 and 212255307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5895964 + ... + 5895999.

It is an arithmetic number, because the mean of its divisors is an integer number (38323883).

Almost surely, 2^212255334 is an apocalyptic number.

212255334 is an abundant number, since it is smaller than the sum of its proper divisors (247631262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212255334 is a wasteful number, since it uses less digits than its factorization.

212255334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11791971 (or 11791968 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 212255334 is about 14568.9853455894. The cubic root of 212255334 is about 596.5124846705.

The spelling of 212255334 in words is "two hundred twelve million, two hundred fifty-five thousand, three hundred thirty-four".