32122421 has 4 divisors (see below), whose sum is σ = 33519072. Its totient is φ = 30725772.

The previous prime is 32122403. The next prime is 32122457. The reversal of 32122421 is 12422123.

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.

It is a cyclic number.

It is not a de Polignac number, because 32122421 - 2¹⁸ = 31860277 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 32122421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32122021) 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 3 ways as a sum of consecutive naturals, for example, 698291 + ... + 698336.

It is an arithmetic number, because the mean of its divisors is an integer number (8379768).

Almost surely, 2^32122421 is an apocalyptic number.

It is an amenable number.

32122421 is a deficient number, since it is larger than the sum of its proper divisors (1396651).

32122421 is a wasteful number, since it uses less digits than its factorization.

32122421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396650.

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

The square root of 32122421 is about 5667.6645101841. The cubic root of 32122421 is about 317.8845519243.

Adding to 32122421 its reverse (12422123), we get a palindrome (44544544).

The spelling of 32122421 in words is "thirty-two million, one hundred twenty-two thousand, four hundred twenty-one".