2001202012122 has 8 divisors (see below), whose sum is σ = 4002404024256. Its totient is φ = 667067337372.

The previous prime is 2001202012087. The next prime is 2001202012141. The reversal of 2001202012122 is 2212102021002.

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

2001202012122 is an admirable number.

It is a super-2 number, since 2×2001202012122² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166766834338 + ... + 166766834349.

It is an arithmetic number, because the mean of its divisors is an integer number (500300503032).

Almost surely, 2^{2001202012122} is an apocalyptic number.

2001202012122 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.

2001202012122 is a wasteful number, since it uses less digits than its factorization.

2001202012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333533668692.

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

Adding to 2001202012122 its reverse (2212102021002), we get a palindrome (4213304033124).

The spelling of 2001202012122 in words is "two trillion, one billion, two hundred two million, twelve thousand, one hundred twenty-two".