32051012221 has 4 divisors (see below), whose sum is σ = 32060689852. Its totient is φ = 32041334592.

The previous prime is 32051012179. The next prime is 32051012263. The reversal of 32051012221 is 12221015023.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (32051012179) and next prime (32051012263).

It can be written as a sum of positive squares in 2 ways, for example, as 14092064100 + 17958948121 = 118710^2 + 134011^2 .

It is a cyclic number.

It is not a de Polignac number, because 32051012221 - 2⁷ = 32051012093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32051012921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4833846 + ... + 4840471.

It is an arithmetic number, because the mean of its divisors is an integer number (8015172463).

Almost surely, 2^32051012221 is an apocalyptic number.

It is an amenable number.

32051012221 is a deficient number, since it is larger than the sum of its proper divisors (9677631).

32051012221 is an equidigital number, since it uses as much as digits as its factorization.

32051012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9677630.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 32051012221 its reverse (12221015023), we get a palindrome (44272027244).

The spelling of 32051012221 in words is "thirty-two billion, fifty-one million, twelve thousand, two hundred twenty-one".