32122121 has 4 divisors (see below), whose sum is σ = 32307972. Its totient is φ = 31936272.

The previous prime is 32122109. The next prime is 32122133. The reversal of 32122121 is 12122123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12122123 = 13 ⋅932471.

It is an interprime number because it is at equal distance from previous prime (32122109) and next prime (32122133).

It can be written as a sum of positive squares in 2 ways, for example, as 15015625 + 17106496 = 3875^2 + 4136^2 .

It is a cyclic number.

It is not a de Polignac number, because 32122121 - 2¹⁴ = 32105737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32122096 and 32122105.

It is not an unprimeable number, because it can be changed into a prime (32122151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92666 + ... + 93011.

It is an arithmetic number, because the mean of its divisors is an integer number (8076993).

Almost surely, 2^32122121 is an apocalyptic number.

It is an amenable number.

32122121 is a deficient number, since it is larger than the sum of its proper divisors (185851).

32122121 is a wasteful number, since it uses less digits than its factorization.

32122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185850.

The product of its digits is 48, while the sum is 14.

The square root of 32122121 is about 5667.6380441944. The cubic root of 32122121 is about 317.8835623179.

Adding to 32122121 its reverse (12122123), we get a palindrome (44244244).

The spelling of 32122121 in words is "thirty-two million, one hundred twenty-two thousand, one hundred twenty-one".