2001123022 has 8 divisors (see below), whose sum is σ = 3082811256. Its totient is φ = 973519272.

The previous prime is 2001123013. The next prime is 2001123031. The reversal of 2001123022 is 2203211002.

It is an interprime number because it is at equal distance from previous prime (2001123013) and next prime (2001123031).

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

It is a junction number, because it is equal to n+sod(n) for n = 2001122993 and 2001123011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13521028 + ... + 13521175.

It is an arithmetic number, because the mean of its divisors is an integer number (385351407).

Almost surely, 2^2001123022 is an apocalyptic number.

2001123022 is a deficient number, since it is larger than the sum of its proper divisors (1081688234).

2001123022 is a wasteful number, since it uses less digits than its factorization.

2001123022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27042242.

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

The square root of 2001123022 is about 44733.9135556012. The cubic root of 2001123022 is about 1260.1568256130.

Adding to 2001123022 its reverse (2203211002), we get a palindrome (4204334024).

The spelling of 2001123022 in words is "two billion, one million, one hundred twenty-three thousand, twenty-two".