2001222340343 has 4 divisors (see below), whose sum is σ = 2106549831960. Its totient is φ = 1895894848728.

The previous prime is 2001222340309. The next prime is 2001222340367. The reversal of 2001222340343 is 3430432221002.

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 2001222340343 - 2⁶ = 2001222340279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001222343343) 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, 52663745780 + ... + 52663745817.

It is an arithmetic number, because the mean of its divisors is an integer number (526637457990).

Almost surely, 2^{2001222340343} is an apocalyptic number.

2001222340343 is a deficient number, since it is larger than the sum of its proper divisors (105327491617).

2001222340343 is a wasteful number, since it uses less digits than its factorization.

2001222340343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105327491616.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 2001222340343 its reverse (3430432221002), we get a palindrome (5431654561345).

The spelling of 2001222340343 in words is "two trillion, one billion, two hundred twenty-two million, three hundred forty thousand, three hundred forty-three".