32212212121 has 2 divisors, whose sum is σ = 32212212122. Its totient is φ = 32212212120.

The previous prime is 32212212091. The next prime is 32212212161. The reversal of 32212212121 is 12121221223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18538184025 + 13674028096 = 136155^2 + 116936^2 .

It is a cyclic number.

It is not a de Polignac number, because 32212212121 - 2⁵ = 32212212089 is a prime.

It is not a weakly prime, because it can be changed into another prime (32212212161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16106106060 + 16106106061.

It is an arithmetic number, because the mean of its divisors is an integer number (16106106061).

Almost surely, 2^32212212121 is an apocalyptic number.

It is an amenable number.

32212212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32212212121 is an equidigital number, since it uses as much as digits as its factorization.

32212212121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

Adding to 32212212121 its reverse (12121221223), we get a palindrome (44333433344).

The spelling of 32212212121 in words is "thirty-two billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-one".