2012103221 has 8 divisors (see below), whose sum is σ = 2150375040. Its totient is φ = 1876043968.

The previous prime is 2012103209. The next prime is 2012103271. The reversal of 2012103221 is 1223012102.

It is a happy number.

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 2012103221 - 2⁶ = 2012103157 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 = 2012103196 and 2012103205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012103271) 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, 551261 + ... + 554898.

It is an arithmetic number, because the mean of its divisors is an integer number (268796880).

Almost surely, 2^2012103221 is an apocalyptic number.

It is an amenable number.

2012103221 is a deficient number, since it is larger than the sum of its proper divisors (138271819).

2012103221 is a wasteful number, since it uses less digits than its factorization.

2012103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106283.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012103221 is about 44856.4735684828. The cubic root of 2012103221 is about 1262.4574574561.

Adding to 2012103221 its reverse (1223012102), we get a palindrome (3235115323).

The spelling of 2012103221 in words is "two billion, twelve million, one hundred three thousand, two hundred twenty-one".