1213324212 has 24 divisors (see below), whose sum is σ = 2865201696. Its totient is φ = 399568288.

The previous prime is 1213324207. The next prime is 1213324213. The reversal of 1213324212 is 2124233121.

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 (1213324213) 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, 608103 + ... + 610094.

It is an arithmetic number, because the mean of its divisors is an integer number (119383404).

Almost surely, 2^1213324212 is an apocalyptic number.

1213324212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213324212 is an abundant number, since it is smaller than the sum of its proper divisors (1651877484).

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

1213324212 is a wasteful number, since it uses less digits than its factorization.

1213324212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218287 (or 1218285 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 1213324212 is about 34832.8036769939. The cubic root of 1213324212 is about 1066.5771813385.

Adding to 1213324212 its reverse (2124233121), we get a palindrome (3337557333).

The spelling of 1213324212 in words is "one billion, two hundred thirteen million, three hundred twenty-four thousand, two hundred twelve".