3201012221 has 32 divisors (see below), whose sum is σ = 3658203648. Its totient is φ = 2775485440.

The previous prime is 3201012211. The next prime is 3201012223. The reversal of 3201012221 is 1222101023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3201012221 - 2¹⁰ = 3201011197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3201012196 and 3201012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201012223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5397701 + ... + 5398293.

It is an arithmetic number, because the mean of its divisors is an integer number (114318864).

Almost surely, 2^3201012221 is an apocalyptic number.

It is an amenable number.

3201012221 is a deficient number, since it is larger than the sum of its proper divisors (457191427).

3201012221 is a wasteful number, since it uses less digits than its factorization.

3201012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901.

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

The square root of 3201012221 is about 56577.4886416850. The cubic root of 3201012221 is about 1473.7679603281.

Adding to 3201012221 its reverse (1222101023), we get a palindrome (4423113244).

The spelling of 3201012221 in words is "three billion, two hundred one million, twelve thousand, two hundred twenty-one".