12103212222 has 48 divisors (see below), whose sum is σ = 26875779840. Its totient is φ = 3935305296.

The previous prime is 12103212157. The next prime is 12103212323. The reversal of 12103212222 is 22221230121.

12103212222 is a `hidden beast` number, since 121 + 0 + 321 + 2 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12103212195 and 12103212204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66753 + ... + 169299.

It is an arithmetic number, because the mean of its divisors is an integer number (559912080).

Almost surely, 2^12103212222 is an apocalyptic number.

12103212222 is an abundant number, since it is smaller than the sum of its proper divisors (14772567618).

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

12103212222 is a wasteful number, since it uses less digits than its factorization.

12103212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102717 (or 102714 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12103212222 its reverse (22221230121), we get a palindrome (34324442343).

The spelling of 12103212222 in words is "twelve billion, one hundred three million, two hundred twelve thousand, two hundred twenty-two".