12222102012 has 24 divisors (see below), whose sum is σ = 28600432896. Its totient is φ = 4062291888.

The previous prime is 12222102007. The next prime is 12222102017. The reversal of 12222102012 is 21020122221.

It is an interprime number because it is at equal distance from previous prime (12222102007) and next prime (12222102017).

It is a junction number, because it is equal to n+sod(n) for n = 12222101982 and 12222102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222102017) 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, 1463428 + ... + 1471755.

It is an arithmetic number, because the mean of its divisors is an integer number (1191684704).

Almost surely, 2^12222102012 is an apocalyptic number.

12222102012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12222102012 is an abundant number, since it is smaller than the sum of its proper divisors (16378330884).

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

12222102012 is a wasteful number, since it uses less digits than its factorization.

12222102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935537 (or 2935535 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12222102012 its reverse (21020122221), we get a palindrome (33242224233).

The spelling of 12222102012 in words is "twelve billion, two hundred twenty-two million, one hundred two thousand, twelve".