12221003213122 has 32 divisors (see below), whose sum is σ = 20009606258880. Its totient is φ = 5551779640320.

The previous prime is 12221003213119. The next prime is 12221003213137. The reversal of 12221003213122 is 22131230012221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12221003213093 and 12221003213102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730519654 + ... + 730536382.

It is an arithmetic number, because the mean of its divisors is an integer number (625300195590).

Almost surely, 2^{12221003213122} is an apocalyptic number.

12221003213122 is a deficient number, since it is larger than the sum of its proper divisors (7788603045758).

12221003213122 is a wasteful number, since it uses less digits than its factorization.

12221003213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34018.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12221003213122 its reverse (22131230012221), we get a palindrome (34352233225343).

The spelling of 12221003213122 in words is "twelve trillion, two hundred twenty-one billion, three million, two hundred thirteen thousand, one hundred twenty-two".