2001022012011 has 16 divisors (see below), whose sum is σ = 2916863838720. Its totient is φ = 1210121293920.

The previous prime is 2001022011971. The next prime is 2001022012039. The reversal of 2001022012011 is 1102102201002.

It is not a de Polignac number, because 2001022012011 - 2⁷ = 2001022011883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001022012211) 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, 65467476 + ... + 65498033.

It is an arithmetic number, because the mean of its divisors is an integer number (182303989920).

Almost surely, 2^{2001022012011} is an apocalyptic number.

2001022012011 is a deficient number, since it is larger than the sum of its proper divisors (915841826709).

2001022012011 is a wasteful number, since it uses less digits than its factorization.

2001022012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130965986.

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

Adding to 2001022012011 its reverse (1102102201002), we get a palindrome (3103124213013).

The spelling of 2001022012011 in words is "two trillion, one billion, twenty-two million, twelve thousand, eleven".