2111110221 has 16 divisors (see below), whose sum is σ = 3153699648. Its totient is φ = 1244880000.

The previous prime is 2111110219. The next prime is 2111110277. The reversal of 2111110221 is 1220111112.

It is not a de Polignac number, because 2111110221 - 2¹ = 2111110219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111110197 and 2111110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111110291) 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, 863280 + ... + 865721.

It is an arithmetic number, because the mean of its divisors is an integer number (197106228).

Almost surely, 2^2111110221 is an apocalyptic number.

It is an amenable number.

2111110221 is a deficient number, since it is larger than the sum of its proper divisors (1042589427).

2111110221 is a wasteful number, since it uses less digits than its factorization.

2111110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729052.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 2111110221 is about 45946.8194873160. The cubic root of 2111110221 is about 1282.8335301312.

Adding to 2111110221 its reverse (1220111112), we get a palindrome (3331221333).

The spelling of 2111110221 in words is "two billion, one hundred eleven million, one hundred ten thousand, two hundred twenty-one".