2012110221 has 16 divisors (see below), whose sum is σ = 2929216320. Its totient is φ = 1218414720.

The previous prime is 2012110187. The next prime is 2012110229. The reversal of 2012110221 is 1220112102.

It is not a de Polignac number, because 2012110221 - 2¹⁵ = 2012077453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012110197 and 2012110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012110229) 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, 13815 + ... + 64923.

It is an arithmetic number, because the mean of its divisors is an integer number (183076020).

Almost surely, 2^2012110221 is an apocalyptic number.

It is an amenable number.

2012110221 is a deficient number, since it is larger than the sum of its proper divisors (917106099).

2012110221 is a wasteful number, since it uses less digits than its factorization.

2012110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52316.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2012110221 is about 44856.5515950569. The cubic root of 2012110221 is about 1262.4589214618.

Adding to 2012110221 its reverse (1220112102), we get a palindrome (3232222323).

The spelling of 2012110221 in words is "two billion, twelve million, one hundred ten thousand, two hundred twenty-one".