32012212121 has 2 divisors, whose sum is σ = 32012212122. Its totient is φ = 32012212120.

The previous prime is 32012212087. The next prime is 32012212163. The reversal of 32012212121 is 12121221023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26836992400 + 5175219721 = 163820^2 + 71939^2 .

It is a cyclic number.

It is not a de Polignac number, because 32012212121 - 2²² = 32008017817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32012212121.

It is not a weakly prime, because it can be changed into another prime (32012212721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16006106060 + 16006106061.

It is an arithmetic number, because the mean of its divisors is an integer number (16006106061).

Almost surely, 2^32012212121 is an apocalyptic number.

It is an amenable number.

32012212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32012212121 is an equidigital number, since it uses as much as digits as its factorization.

32012212121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 32012212121 its reverse (12121221023), we get a palindrome (44133433144).

The spelling of 32012212121 in words is "thirty-two billion, twelve million, two hundred twelve thousand, one hundred twenty-one".