2001012122022 has 8 divisors (see below), whose sum is σ = 4002024244056. Its totient is φ = 667004040672.

The previous prime is 2001012122017. The next prime is 2001012122027. The reversal of 2001012122022 is 2202212101002.

It is an interprime number because it is at equal distance from previous prime (2001012122017) and next prime (2001012122027).

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

2001012122022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2001012121992 and 2001012122010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001012122027) 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 3 ways as a sum of consecutive naturals, for example, 166751010163 + ... + 166751010174.

It is an arithmetic number, because the mean of its divisors is an integer number (500253030507).

Almost surely, 2^{2001012122022} is an apocalyptic number.

2001012122022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001012122022 is a wasteful number, since it uses less digits than its factorization.

2001012122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333502020342.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2001012122022 its reverse (2202212101002), we get a palindrome (4203224223024).

The spelling of 2001012122022 in words is "two trillion, one billion, twelve million, one hundred twenty-two thousand, twenty-two".