1322221220324 has 12 divisors (see below), whose sum is σ = 2314306280748. Its totient is φ = 660990854400.

The previous prime is 1322221220321. The next prime is 1322221220339. The reversal of 1322221220324 is 4230221222231.

It can be written as a sum of positive squares in 2 ways, for example, as 426866222500 + 895354997824 = 653350^2 + 946232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1322221220293 and 1322221220302.

It is not an unprimeable number, because it can be changed into a prime (1322221220321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29914097 + ... + 29958264.

It is an arithmetic number, because the mean of its divisors is an integer number (192858856729).

Almost surely, 2^{1322221220324} is an apocalyptic number.

It is an amenable number.

1322221220324 is a deficient number, since it is larger than the sum of its proper divisors (992085060424).

1322221220324 is a wasteful number, since it uses less digits than its factorization.

1322221220324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59877886 (or 59877884 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1322221220324 its reverse (4230221222231), we get a palindrome (5552442442555).

The spelling of 1322221220324 in words is "one trillion, three hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, three hundred twenty-four".