32004220121 has 4 divisors (see below), whose sum is σ = 32006083044. Its totient is φ = 32002357200.

The previous prime is 32004220117. The next prime is 32004220133. The reversal of 32004220121 is 12102240023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12102240023 = 2017 ⋅6000119.

It can be written as a sum of positive squares in 2 ways, for example, as 22100984896 + 9903235225 = 148664^2 + 99515^2 .

It is a cyclic number.

It is not a de Polignac number, because 32004220121 - 2² = 32004220117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32004220121.

It is not an unprimeable number, because it can be changed into a prime (32007220121) 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, 905450 + ... + 940131.

It is an arithmetic number, because the mean of its divisors is an integer number (8001520761).

Almost surely, 2^32004220121 is an apocalyptic number.

It is an amenable number.

32004220121 is a deficient number, since it is larger than the sum of its proper divisors (1862923).

32004220121 is a wasteful number, since it uses less digits than its factorization.

32004220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862922.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 32004220121 its reverse (12102240023), we get a palindrome (44106460144).

The spelling of 32004220121 in words is "thirty-two billion, four million, two hundred twenty thousand, one hundred twenty-one".