12221102120022 has 12 divisors (see below), whose sum is σ = 26479054593420. Its totient is φ = 4073700706668.

The previous prime is 12221102119907. The next prime is 12221102120033. The reversal of 12221102120022 is 22002120112221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 678950117779 = 12221102120022 / (1 + 2 + 2 + 2 + 1 + 1 + 0 + 2 + 1 + 2 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12221102119977 and 12221102120004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339475058872 + ... + 339475058907.

It is an arithmetic number, because the mean of its divisors is an integer number (2206587882785).

Almost surely, 2^{12221102120022} is an apocalyptic number.

12221102120022 is an abundant number, since it is smaller than the sum of its proper divisors (14257952473398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221102120022 is a wasteful number, since it uses less digits than its factorization.

12221102120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678950117787 (or 678950117784 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221102120022 its reverse (22002120112221), we get a palindrome (34223222232243).

The spelling of 12221102120022 in words is "twelve trillion, two hundred twenty-one billion, one hundred two million, one hundred twenty thousand, twenty-two".