2001222020011 has 16 divisors (see below), whose sum is σ = 2097966689280. Its totient is φ = 1906771164480.

The previous prime is 2001222019999. The next prime is 2001222020029. The reversal of 2001222020011 is 1100202221002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2001222020011 - 2¹³ = 2001222011819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001222019973 and 2001222020000.

It is not an unprimeable number, because it can be changed into a prime (2001222020071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15136530 + ... + 15268168.

It is an arithmetic number, because the mean of its divisors is an integer number (131122918080).

Almost surely, 2^{2001222020011} is an apocalyptic number.

2001222020011 is a deficient number, since it is larger than the sum of its proper divisors (96744669269).

2001222020011 is a wasteful number, since it uses less digits than its factorization.

2001222020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140346.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001222020011 its reverse (1100202221002), we get a palindrome (3101424241013).

The spelling of 2001222020011 in words is "two trillion, one billion, two hundred twenty-two million, twenty thousand, eleven".