12222100012 has 24 divisors (see below), whose sum is σ = 21996128000. Its totient is φ = 5938921296.

The previous prime is 12222099997. The next prime is 12222100013. The reversal of 12222100012 is 21000122221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12222099965 and 12222100001.

It is not an unprimeable number, because it can be changed into a prime (12222100013) 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, 144312 + ... + 212767.

Almost surely, 2^12222100012 is an apocalyptic number.

It is an amenable number.

12222100012 is a deficient number, since it is larger than the sum of its proper divisors (9774027988).

12222100012 is a wasteful number, since it uses less digits than its factorization.

12222100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357325 (or 357323 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12222100012 its reverse (21000122221), we get a palindrome (33222222233).

The spelling of 12222100012 in words is "twelve billion, two hundred twenty-two million, one hundred thousand, twelve".