12101222212 has 24 divisors (see below), whose sum is σ = 21796799360. Its totient is φ = 5876076960.

The previous prime is 12101222209. The next prime is 12101222213. The reversal of 12101222212 is 21222210121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12101222213) 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, 294618 + ... + 333169.

Almost surely, 2^12101222212 is an apocalyptic number.

It is an amenable number.

12101222212 is a deficient number, since it is larger than the sum of its proper divisors (9695577148).

12101222212 is a wasteful number, since it uses less digits than its factorization.

12101222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627931 (or 627929 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12101222212 its reverse (21222210121), we get a palindrome (33323432333).

The spelling of 12101222212 in words is "twelve billion, one hundred one million, two hundred twenty-two thousand, two hundred twelve".