2001110221 has 24 divisors (see below), whose sum is σ = 2282841792. Its totient is φ = 1751534400.

The previous prime is 2001110219. The next prime is 2001110249. The reversal of 2001110221 is 1220111002.

It is not a de Polignac number, because 2001110221 - 2¹ = 2001110219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001110198 and 2001110207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001110201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366705 + ... + 372121.

It is an arithmetic number, because the mean of its divisors is an integer number (95118408).

Almost surely, 2^2001110221 is an apocalyptic number.

It is an amenable number.

2001110221 is a deficient number, since it is larger than the sum of its proper divisors (281731571).

2001110221 is a wasteful number, since it uses less digits than its factorization.

2001110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553 (or 5542 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2001110221 is about 44733.7704760062. The cubic root of 2001110221 is about 1260.1541385715.

Adding to 2001110221 its reverse (1220111002), we get a palindrome (3221221223).

The spelling of 2001110221 in words is "two billion, one million, one hundred ten thousand, two hundred twenty-one".