12122211213 has 48 divisors (see below), whose sum is σ = 20548669440. Its totient is φ = 6743246112.

The previous prime is 12122211187. The next prime is 12122211217. The reversal of 12122211213 is 31211222121.

It is not a de Polignac number, because 12122211213 - 2¹⁴ = 12122194829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122211217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 367020 + ... + 398682.

It is an arithmetic number, because the mean of its divisors is an integer number (428097280).

Almost surely, 2^12122211213 is an apocalyptic number.

It is an amenable number.

12122211213 is a deficient number, since it is larger than the sum of its proper divisors (8426458227).

12122211213 is a wasteful number, since it uses less digits than its factorization.

12122211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31838 (or 31835 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

Adding to 12122211213 its reverse (31211222121), we get a palindrome (43333433334).

The spelling of 12122211213 in words is "twelve billion, one hundred twenty-two million, two hundred eleven thousand, two hundred thirteen".