2012002221 has 8 divisors (see below), whose sum is σ = 2690631424. Its totient is φ = 1337353920.

The previous prime is 2012002163. The next prime is 2012002249. The reversal of 2012002221 is 1222002102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2012002221 - 2¹⁴ = 2011985837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2012002197 and 2012002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012002261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994045 + ... + 996066.

It is an arithmetic number, because the mean of its divisors is an integer number (336328928).

Almost surely, 2^2012002221 is an apocalyptic number.

It is an amenable number.

2012002221 is a deficient number, since it is larger than the sum of its proper divisors (678629203).

2012002221 is a wasteful number, since it uses less digits than its factorization.

2012002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990451.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2012002221 is about 44855.3477413786. The cubic root of 2012002221 is about 1262.4363335669.

Adding to 2012002221 its reverse (1222002102), we get a palindrome (3234004323).

The spelling of 2012002221 in words is "two billion, twelve million, two thousand, two hundred twenty-one".