32222121 has 4 divisors (see below), whose sum is σ = 42962832. Its totient is φ = 21481412.

The previous prime is 32222107. The next prime is 32222137. The reversal of 32222121 is 12122223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12122223 = 3 ⋅4040741.

It is a cyclic number.

It is not a de Polignac number, because 32222121 - 2⁷ = 32221993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32222121.

It is not an unprimeable number, because it can be changed into a prime (32222321) 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, 5370351 + ... + 5370356.

It is an arithmetic number, because the mean of its divisors is an integer number (10740708).

Almost surely, 2^32222121 is an apocalyptic number.

It is an amenable number.

32222121 is a deficient number, since it is larger than the sum of its proper divisors (10740711).

32222121 is a wasteful number, since it uses less digits than its factorization.

32222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740710.

The product of its digits is 96, while the sum is 15.

The square root of 32222121 is about 5676.4532060081. The cubic root of 32222121 is about 318.2130904353.

Adding to 32222121 its reverse (12122223), we get a palindrome (44344344).

The spelling of 32222121 in words is "thirty-two million, two hundred twenty-two thousand, one hundred twenty-one".