32122221121 has 4 divisors (see below), whose sum is σ = 32135945044. Its totient is φ = 32108497200.

The previous prime is 32122221097. The next prime is 32122221127. The reversal of 32122221121 is 12112222123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12112222123 = 73 ⋅165920851.

It can be written as a sum of positive squares in 2 ways, for example, as 11180947600 + 20941273521 = 105740^2 + 144711^2 .

It is a cyclic number.

It is not a de Polignac number, because 32122221121 - 2⁷ = 32122220993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32122221127) 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, 6858450 + ... + 6863131.

It is an arithmetic number, because the mean of its divisors is an integer number (8033986261).

Almost surely, 2^32122221121 is an apocalyptic number.

It is an amenable number.

32122221121 is a deficient number, since it is larger than the sum of its proper divisors (13723923).

32122221121 is a wasteful number, since it uses less digits than its factorization.

32122221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13723922.

The product of its digits is 192, while the sum is 19.

Adding to 32122221121 its reverse (12112222123), we get a palindrome (44234443244).

The spelling of 32122221121 in words is "thirty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".