32120021121 has 8 divisors (see below), whose sum is σ = 42898917600. Its totient is φ = 21377236032.

The previous prime is 32120021071. The next prime is 32120021147. The reversal of 32120021121 is 12112002123.

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

It is not a de Polignac number, because 32120021121 - 2¹¹ = 32120019073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32120021121.

It is not an unprimeable number, because it can be changed into a prime (32120021321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9025771 + ... + 9029328.

It is an arithmetic number, because the mean of its divisors is an integer number (5362364700).

Almost surely, 2^32120021121 is an apocalyptic number.

It is an amenable number.

32120021121 is a deficient number, since it is larger than the sum of its proper divisors (10778896479).

32120021121 is a wasteful number, since it uses less digits than its factorization.

32120021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18055695.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 32120021121 its reverse (12112002123), we get a palindrome (44232023244).

It can be divided in two parts, 3212002 and 1121, that added together give a palindrome (3213123).

The spelling of 32120021121 in words is "thirty-two billion, one hundred twenty million, twenty-one thousand, one hundred twenty-one".