32120221021 has 8 divisors (see below), whose sum is σ = 36738702720. Its totient is φ = 27509209008.

The previous prime is 32120221019. The next prime is 32120221033. The reversal of 32120221021 is 12012202123.

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 32120221021 - 2¹ = 32120221019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32120220986 and 32120221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32120221321) 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, 1858201 + ... + 1875406.

It is an arithmetic number, because the mean of its divisors is an integer number (4592337840).

Almost surely, 2^32120221021 is an apocalyptic number.

It is an amenable number.

32120221021 is a deficient number, since it is larger than the sum of its proper divisors (4618481699).

32120221021 is a wasteful number, since it uses less digits than its factorization.

32120221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734843.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 32120221021 its reverse (12012202123), we get a palindrome (44132423144).

The spelling of 32120221021 in words is "thirty-two billion, one hundred twenty million, two hundred twenty-one thousand, twenty-one".