212611312 has 10 divisors (see below), whose sum is σ = 411934448. Its totient is φ = 106305648.

The previous prime is 212611303. The next prime is 212611313. The reversal of 212611312 is 213116212.

212611312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212611312² = 90407139980722688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212611312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212611313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6644088 + ... + 6644119.

Almost surely, 2^212611312 is an apocalyptic number.

It is an amenable number.

212611312 is a deficient number, since it is larger than the sum of its proper divisors (199323136).

212611312 is a wasteful number, since it uses less digits than its factorization.

212611312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13288215 (or 13288209 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 212611312 is about 14581.1972073626. The cubic root of 212611312 is about 596.8457730707.

Adding to 212611312 its reverse (213116212), we get a palindrome (425727524).

It can be divided in two parts, 212 and 611312, that added together give a square (611524 = 782²).

The spelling of 212611312 in words is "two hundred twelve million, six hundred eleven thousand, three hundred twelve".