2001211110 has 40 divisors (see below), whose sum is σ = 5381036496. Its totient is φ = 533656080.

The previous prime is 2001211109. The next prime is 2001211111. The reversal of 2001211110 is 111121002.

It is a happy number.

2001211110 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2001211109) and next prime (2001211111).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2001211092 and 2001211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001211111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1234506 + ... + 1236125.

Almost surely, 2^2001211110 is an apocalyptic number.

2001211110 is an abundant number, since it is smaller than the sum of its proper divisors (3379825386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001211110 is a wasteful number, since it uses less digits than its factorization.

2001211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470650 (or 2470641 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 2001211110 is about 44734.8981221596. The cubic root of 2001211110 is about 1260.1753157416.

Adding to 2001211110 its reverse (111121002), we get a palindrome (2112332112).

The spelling of 2001211110 in words is "two billion, one million, two hundred eleven thousand, one hundred ten".