212245286 has 16 divisors (see below), whose sum is σ = 347561280. Its totient is φ = 96405480.

The previous prime is 212245273. The next prime is 212245309. The reversal of 212245286 is 682542212.

212245286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212245286² = 90096122858443592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39425 + ... + 44483.

It is an arithmetic number, because the mean of its divisors is an integer number (21722580).

Almost surely, 2^212245286 is an apocalyptic number.

212245286 is a deficient number, since it is larger than the sum of its proper divisors (135315994).

212245286 is a wasteful number, since it uses less digits than its factorization.

212245286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979.

The product of its digits is 15360, while the sum is 32.

The square root of 212245286 is about 14568.6404993740. The cubic root of 212245286 is about 596.5030717119.

Adding to 212245286 its reverse (682542212), we get a palindrome (894787498).

The spelling of 212245286 in words is "two hundred twelve million, two hundred forty-five thousand, two hundred eighty-six".