2001112201211 has 16 divisors (see below), whose sum is σ = 2044193472288. Its totient is φ = 1958466585600.

The previous prime is 2001112201189. The next prime is 2001112201237. The reversal of 2001112201211 is 1121022111002.

It is a cyclic number.

It is not a de Polignac number, because 2001112201211 - 2²² = 2001108006907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001112201241) 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, 24371456 + ... + 24453426.

It is an arithmetic number, because the mean of its divisors is an integer number (127762092018).

Almost surely, 2^{2001112201211} is an apocalyptic number.

2001112201211 is a deficient number, since it is larger than the sum of its proper divisors (43081271077).

2001112201211 is a wasteful number, since it uses less digits than its factorization.

2001112201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84622.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2001112201211 its reverse (1121022111002), we get a palindrome (3122134312213).

The spelling of 2001112201211 in words is "two trillion, one billion, one hundred twelve million, two hundred one thousand, two hundred eleven".