2001222211112 has 32 divisors (see below), whose sum is σ = 3843998726400. Its totient is φ = 976158268800.

The previous prime is 2001222211061. The next prime is 2001222211123. The reversal of 2001222211112 is 2111122221002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7114439 + ... + 7390377.

It is an arithmetic number, because the mean of its divisors is an integer number (120124960200).

Almost surely, 2^{2001222211112} is an apocalyptic number.

It is an amenable number.

2001222211112 is a deficient number, since it is larger than the sum of its proper divisors (1842776515288).

2001222211112 is a wasteful number, since it uses less digits than its factorization.

2001222211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298097 (or 298093 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2001222211112 its reverse (2111122221002), we get a palindrome (4112344432114).

The spelling of 2001222211112 in words is "two trillion, one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twelve".