12212231213 has 8 divisors (see below), whose sum is σ = 15030438528. Its totient is φ = 9662424624.

The previous prime is 12212231149. The next prime is 12212231219. The reversal of 12212231213 is 31213221221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12212231213 - 2⁶ = 12212231149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212231219) 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, 67100081 + ... + 67100262.

It is an arithmetic number, because the mean of its divisors is an integer number (1878804816).

Almost surely, 2^12212231213 is an apocalyptic number.

12212231213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12212231213 is a deficient number, since it is larger than the sum of its proper divisors (2818207315).

12212231213 is a wasteful number, since it uses less digits than its factorization.

12212231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134200363.

The product of its digits is 288, while the sum is 20.

Adding to 12212231213 its reverse (31213221221), we get a palindrome (43425452434).

The spelling of 12212231213 in words is "twelve billion, two hundred twelve million, two hundred thirty-one thousand, two hundred thirteen".