213333212312 has 32 divisors (see below), whose sum is σ = 436409510400. Its totient is φ = 96959392800.

The previous prime is 213333212251. The next prime is 213333212317. The reversal of 213333212312 is 213212333312.

It is a super-2 number, since 2×213333212312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213333212317) 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, 742637 + ... + 989027.

It is an arithmetic number, because the mean of its divisors is an integer number (13637797200).

Almost surely, 2^213333212312 is an apocalyptic number.

213333212312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213333212312 is an abundant number, since it is smaller than the sum of its proper divisors (223076298088).

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

213333212312 is a wasteful number, since it uses less digits than its factorization.

213333212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256247 (or 256243 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

Adding to 213333212312 its reverse (213212333312), we get a palindrome (426545545624).

The spelling of 213333212312 in words is "two hundred thirteen billion, three hundred thirty-three million, two hundred twelve thousand, three hundred twelve".