12101222222 has 8 divisors (see below), whose sum is σ = 18173016576. Its totient is φ = 6043550032.

The previous prime is 12101222213. The next prime is 12101222249. The reversal of 12101222222 is 22222210121.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12101222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3528398 + ... + 3531825.

It is an arithmetic number, because the mean of its divisors is an integer number (2271627072).

Almost surely, 2^12101222222 is an apocalyptic number.

12101222222 is a deficient number, since it is larger than the sum of its proper divisors (6071794354).

12101222222 is an equidigital number, since it uses as much as digits as its factorization.

12101222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061082.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12101222222 its reverse (22222210121), we get a palindrome (34323432343).

The spelling of 12101222222 in words is "twelve billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty-two".