2012020221 has 8 divisors (see below), whose sum is σ = 2692895040. Its totient is φ = 1336246112.

The previous prime is 2012020211. The next prime is 2012020229. The reversal of 2012020221 is 1220202102.

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

It is a cyclic number.

It is not a de Polignac number, because 2012020221 - 2⁷ = 2012020093 is a prime.

It is a super-3 number, since 3×2012020221³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2012020197 and 2012020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012020229) 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, 1274256 + ... + 1275833.

It is an arithmetic number, because the mean of its divisors is an integer number (336611880).

Almost surely, 2^2012020221 is an apocalyptic number.

It is an amenable number.

2012020221 is a deficient number, since it is larger than the sum of its proper divisors (680874819).

2012020221 is a wasteful number, since it uses less digits than its factorization.

2012020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550355.

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

The square root of 2012020221 is about 44855.5483859020. The cubic root of 2012020221 is about 1262.4400982722.

Adding to 2012020221 its reverse (1220202102), we get a palindrome (3232222323).

The spelling of 2012020221 in words is "two billion, twelve million, twenty thousand, two hundred twenty-one".