12221002100222 has 16 divisors (see below), whose sum is σ = 18403370944992. Its totient is φ = 6086550589440.

The previous prime is 12221002100221. The next prime is 12221002100227. The reversal of 12221002100222 is 22200120012221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221002100222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221002100221) 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, 3118718 + ... + 5845374.

It is an arithmetic number, because the mean of its divisors is an integer number (1150210684062).

Almost surely, 2^{12221002100222} is an apocalyptic number.

12221002100222 is a deficient number, since it is larger than the sum of its proper divisors (6182368844770).

12221002100222 is a wasteful number, since it uses less digits than its factorization.

12221002100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735443.

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

Adding to 12221002100222 its reverse (22200120012221), we get a palindrome (34421122112443).

The spelling of 12221002100222 in words is "twelve trillion, two hundred twenty-one billion, two million, one hundred thousand, two hundred twenty-two".