1322121221023 has 4 divisors (see below), whose sum is σ = 1322135502040. Its totient is φ = 1322106940008.

The previous prime is 1322121221021. The next prime is 1322121221033. The reversal of 1322121221023 is 3201221212231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1322121221023 - 2¹ = 1322121221021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1322121220985 and 1322121221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322121221021) 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, 7000728 + ... + 7187101.

It is an arithmetic number, because the mean of its divisors is an integer number (330533875510).

Almost surely, 2^{1322121221023} is an apocalyptic number.

1322121221023 is a deficient number, since it is larger than the sum of its proper divisors (14281017).

1322121221023 is an equidigital number, since it uses as much as digits as its factorization.

1322121221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281016.

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

Adding to 1322121221023 its reverse (3201221212231), we get a palindrome (4523342433254).

The spelling of 1322121221023 in words is "one trillion, three hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty-three".