12020001221222 has 16 divisors (see below), whose sum is σ = 19414159503120. Its totient is φ = 5560598769408.

The previous prime is 12020001221219. The next prime is 12020001221251. The reversal of 12020001221222 is 22212210002021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 12020001221222.

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, 2996010263 + ... + 2996014274.

It is an arithmetic number, because the mean of its divisors is an integer number (1213384968945).

Almost surely, 2^{12020001221222} is an apocalyptic number.

12020001221222 is a deficient number, since it is larger than the sum of its proper divisors (7394158281898).

12020001221222 is a wasteful number, since it uses less digits than its factorization.

12020001221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992024615.

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

Adding to 12020001221222 its reverse (22212210002021), we get a palindrome (34232211223243).

The spelling of 12020001221222 in words is "twelve trillion, twenty billion, one million, two hundred twenty-one thousand, two hundred twenty-two".