12102220021222 has 16 divisors (see below), whose sum is σ = 19222169469120. Its totient is φ = 5694867105408.

The previous prime is 12102220021207. The next prime is 12102220021261. The reversal of 12102220021222 is 22212002220121.

It is a super-2 number, since 2×12102220021222² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12102220021222.

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, 8560638 + ... + 9873649.

It is an arithmetic number, because the mean of its divisors is an integer number (1201385591820).

Almost surely, 2^{12102220021222} is an apocalyptic number.

12102220021222 is a deficient number, since it is larger than the sum of its proper divisors (7119949447898).

12102220021222 is a wasteful number, since it uses less digits than its factorization.

12102220021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18453615.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12102220021222 its reverse (22212002220121), we get a palindrome (34314222241343).

The spelling of 12102220021222 in words is "twelve trillion, one hundred two billion, two hundred twenty million, twenty-one thousand, two hundred twenty-two".