2001312231022 has 8 divisors (see below), whose sum is σ = 3232888988616. Its totient is φ = 923682568152.

The previous prime is 2001312231013. The next prime is 2001312231031. The reversal of 2001312231022 is 2201322131002.

It is an interprime number because it is at equal distance from previous prime (2001312231013) and next prime (2001312231031).

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 38486773648 + ... + 38486773699.

It is an arithmetic number, because the mean of its divisors is an integer number (404111123577).

Almost surely, 2^{2001312231022} is an apocalyptic number.

2001312231022 is a deficient number, since it is larger than the sum of its proper divisors (1231576757594).

2001312231022 is a wasteful number, since it uses less digits than its factorization.

2001312231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76973547362.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2001312231022 its reverse (2201322131002), we get a palindrome (4202634362024).

The spelling of 2001312231022 in words is "two trillion, one billion, three hundred twelve million, two hundred thirty-one thousand, twenty-two".