12120001222 has 16 divisors (see below), whose sum is σ = 21061765152. Its totient is φ = 5123131200.

The previous prime is 12120001121. The next prime is 12120001261. The reversal of 12120001222 is 22210002121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5928529 + ... + 5930572.

It is an arithmetic number, because the mean of its divisors is an integer number (1316360322).

Almost surely, 2^12120001222 is an apocalyptic number.

12120001222 is a deficient number, since it is larger than the sum of its proper divisors (8941763930).

12120001222 is a wasteful number, since it uses less digits than its factorization.

12120001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11859183.

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

Adding to 12120001222 its reverse (22210002121), we get a palindrome (34330003343).

The spelling of 12120001222 in words is "twelve billion, one hundred twenty million, one thousand, two hundred twenty-two".