212120301233 has 2 divisors, whose sum is σ = 212120301234. Its totient is φ = 212120301232.

The previous prime is 212120301187. The next prime is 212120301317. The reversal of 212120301233 is 332103021212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193346642944 + 18773658289 = 439712^2 + 137017^2 .

It is a cyclic number.

It is not a de Polignac number, because 212120301233 - 2²⁶ = 212053192369 is a prime.

It is a super-2 number, since 2×212120301233² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212120201233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060150616 + 106060150617.

It is an arithmetic number, because the mean of its divisors is an integer number (106060150617).

Almost surely, 2^212120301233 is an apocalyptic number.

It is an amenable number.

212120301233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120301233 is an equidigital number, since it uses as much as digits as its factorization.

212120301233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212120301233 its reverse (332103021212), we get a palindrome (544223322445).

The spelling of 212120301233 in words is "two hundred twelve billion, one hundred twenty million, three hundred one thousand, two hundred thirty-three".