212232127321 has 2 divisors, whose sum is σ = 212232127322. Its totient is φ = 212232127320.

The previous prime is 212232127307. The next prime is 212232127337. The reversal of 212232127321 is 123721232212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209273311296 + 2958816025 = 457464^2 + 54395^2 .

It is a cyclic number.

It is not a de Polignac number, because 212232127321 - 2¹⁵ = 212232094553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212232127321.

It is not a weakly prime, because it can be changed into another prime (212232127301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106116063660 + 106116063661.

It is an arithmetic number, because the mean of its divisors is an integer number (106116063661).

Almost surely, 2^212232127321 is an apocalyptic number.

It is an amenable number.

212232127321 is a deficient number, since it is larger than the sum of its proper divisors (1).

212232127321 is an equidigital number, since it uses as much as digits as its factorization.

212232127321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

Adding to 212232127321 its reverse (123721232212), we get a palindrome (335953359533).

The spelling of 212232127321 in words is "two hundred twelve billion, two hundred thirty-two million, one hundred twenty-seven thousand, three hundred twenty-one".