1323221011222 has 128 divisors (see below), whose sum is σ = 2322022090752. Its totient is φ = 559586227200.

The previous prime is 1323221011201. The next prime is 1323221011267. The reversal of 1323221011222 is 2221101223231.

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 = 1323221011193 and 1323221011202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2630657823 + ... + 2630658325.

It is an arithmetic number, because the mean of its divisors is an integer number (18140797584).

Almost surely, 2^{1323221011222} is an apocalyptic number.

1323221011222 is a deficient number, since it is larger than the sum of its proper divisors (998801079530).

1323221011222 is a wasteful number, since it uses less digits than its factorization.

1323221011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

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

Adding to 1323221011222 its reverse (2221101223231), we get a palindrome (3544322234453).

The spelling of 1323221011222 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-one million, eleven thousand, two hundred twenty-two".