32220321421 has 2 divisors, whose sum is σ = 32220321422. Its totient is φ = 32220321420.

The previous prime is 32220321403. The next prime is 32220321433. The reversal of 32220321421 is 12412302223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24826729225 + 7393592196 = 157565^2 + 85986^2 .

It is a cyclic number.

It is not a de Polignac number, because 32220321421 - 2¹⁹ = 32219797133 is a prime.

It is a super-2 number, since 2×32220321421² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32220321392 and 32220321401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32220321461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16110160710 + 16110160711.

It is an arithmetic number, because the mean of its divisors is an integer number (16110160711).

Almost surely, 2^32220321421 is an apocalyptic number.

It is an amenable number.

32220321421 is a deficient number, since it is larger than the sum of its proper divisors (1).

32220321421 is an equidigital number, since it uses as much as digits as its factorization.

32220321421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 32220321421 its reverse (12412302223), we get a palindrome (44632623644).

The spelling of 32220321421 in words is "thirty-two billion, two hundred twenty million, three hundred twenty-one thousand, four hundred twenty-one".