2001122011002 has 16 divisors (see below), whose sum is σ = 4032795504672. Its totient is φ = 661948756560.

The previous prime is 2001122010989. The next prime is 2001122011003. The reversal of 2001122011002 is 2001102211002.

It is not an unprimeable number, because it can be changed into a prime (2001122011003) 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 7 ways as a sum of consecutive naturals, for example, 1272977593 + ... + 1272979164.

It is an arithmetic number, because the mean of its divisors is an integer number (252049719042).

Almost surely, 2^{2001122011002} is an apocalyptic number.

2001122011002 is an abundant number, since it is smaller than the sum of its proper divisors (2031673493670).

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

2001122011002 is a wasteful number, since it uses less digits than its factorization.

2001122011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545956893.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2001122011002 its reverse (2001102211002), we get a palindrome (4002224222004).

The spelling of 2001122011002 in words is "two trillion, one billion, one hundred twenty-two million, eleven thousand, two".