2022001321 has 4 divisors (see below), whose sum is σ = 2039895252. Its totient is φ = 2004107392.

The previous prime is 2022001309. The next prime is 2022001349. The reversal of 2022001321 is 1231002202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 154032921 + 1867968400 = 12411^2 + 43220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022001321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2022001621) 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, 8946796 + ... + 8947021.

It is an arithmetic number, because the mean of its divisors is an integer number (509973813).

Almost surely, 2^2022001321 is an apocalyptic number.

It is an amenable number.

2022001321 is a deficient number, since it is larger than the sum of its proper divisors (17893931).

2022001321 is a wasteful number, since it uses less digits than its factorization.

2022001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17893930.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2022001321 is about 44966.6690004941. The cubic root of 2022001321 is about 1264.5241996121.

Adding to 2022001321 its reverse (1231002202), we get a palindrome (3253003523).

The spelling of 2022001321 in words is "two billion, twenty-two million, one thousand, three hundred twenty-one".