213212213412 has 48 divisors (see below), whose sum is σ = 543444916224. Its totient is φ = 64523700000.

The previous prime is 213212213399. The next prime is 213212213413. The reversal of 213212213412 is 214312212312.

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

It is not an unprimeable number, because it can be changed into a prime (213212213413) 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, 976264 + ... + 1174527.

It is an arithmetic number, because the mean of its divisors is an integer number (11321769088).

Almost surely, 2^213212213412 is an apocalyptic number.

213212213412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213212213412 is an abundant number, since it is smaller than the sum of its proper divisors (330232702812).

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

213212213412 is a wasteful number, since it uses less digits than its factorization.

213212213412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151560 (or 2151558 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 213212213412 its reverse (214312212312), we get a palindrome (427524425724).

It can be divided in two parts, 213212 and 213412, that added together give a palindrome (426624).

The spelling of 213212213412 in words is "two hundred thirteen billion, two hundred twelve million, two hundred thirteen thousand, four hundred twelve".