1322021231021 has 8 divisors (see below), whose sum is σ = 1340219669880. Its totient is φ = 1303825185792.

The previous prime is 1322021230997. The next prime is 1322021231033. The reversal of 1322021231021 is 1201321202231.

It can be written as a sum of positive squares in 4 ways, for example, as 34672302025 + 1287348928996 = 186205^2 + 1134614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322021231021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1322021230984 and 1322021231002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322021236021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528311 + ... + 1709723.

It is an arithmetic number, because the mean of its divisors is an integer number (167527458735).

Almost surely, 2^{1322021231021} is an apocalyptic number.

It is an amenable number.

1322021231021 is a deficient number, since it is larger than the sum of its proper divisors (18198438859).

1322021231021 is a wasteful number, since it uses less digits than its factorization.

1322021231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196815.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1322021231021 its reverse (1201321202231), we get a palindrome (2523342433252).

The spelling of 1322021231021 in words is "one trillion, three hundred twenty-two billion, twenty-one million, two hundred thirty-one thousand, twenty-one".