212841286 has 16 divisors (see below), whose sum is σ = 372635136. Its totient is φ = 89276616.

The previous prime is 212841281. The next prime is 212841313. The reversal of 212841286 is 682148212.

It is a super-2 number, since 2×212841286² = 90602826052267592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212841281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161076 + ... + 162391.

It is an arithmetic number, because the mean of its divisors is an integer number (23289696).

Almost surely, 2^212841286 is an apocalyptic number.

212841286 is a deficient number, since it is larger than the sum of its proper divisors (159793850).

212841286 is a wasteful number, since it uses less digits than its factorization.

212841286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323523.

The product of its digits is 12288, while the sum is 34.

The square root of 212841286 is about 14589.0810539938. The cubic root of 212841286 is about 597.0608910542.

Adding to 212841286 its reverse (682148212), we get a palindrome (894989498).

The spelling of 212841286 in words is "two hundred twelve million, eight hundred forty-one thousand, two hundred eighty-six".