212313336 has 64 divisors (see below), whose sum is σ = 547585920. Its totient is φ = 68565120.

The previous prime is 212313331. The next prime is 212313337. The reversal of 212313336 is 633313212.

It is a happy number.

It is a super-3 number, since 3×212313336³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212313331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104571 + ... + 106581.

It is an arithmetic number, because the mean of its divisors is an integer number (8556030).

Almost surely, 2^212313336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212313336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273792960).

212313336 is an abundant number, since it is smaller than the sum of its proper divisors (335272584).

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

212313336 is a wasteful number, since it uses less digits than its factorization.

212313336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156 (or 2152 counting only the distinct ones).

The product of its digits is 1944, while the sum is 24.

The square root of 212313336 is about 14570.9758080919. The cubic root of 212313336 is about 596.5668150932.

Adding to 212313336 its reverse (633313212), we get a palindrome (845626548).

The spelling of 212313336 in words is "two hundred twelve million, three hundred thirteen thousand, three hundred thirty-six".