2001002221112 has 16 divisors (see below), whose sum is σ = 3751951845840. Its totient is φ = 1000481728896.

The previous prime is 2001002221109. The next prime is 2001002221147. The reversal of 2001002221112 is 2111222001002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979153 + ... + 2814080.

It is an arithmetic number, because the mean of its divisors is an integer number (234496990365).

Almost surely, 2^{2001002221112} is an apocalyptic number.

It is an amenable number.

2001002221112 is a deficient number, since it is larger than the sum of its proper divisors (1750949624728).

2001002221112 is a wasteful number, since it uses less digits than its factorization.

2001002221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845422 (or 4845418 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001002221112 its reverse (2111222001002), we get a palindrome (4112224222114).

The spelling of 2001002221112 in words is "two trillion, one billion, two million, two hundred twenty-one thousand, one hundred twelve".