212222221221233 has 2 divisors, whose sum is σ = 212222221221234. Its totient is φ = 212222221221232.

The previous prime is 212222221221203. The next prime is 212222221221281. The reversal of 212222221221233 is 332122122222212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145838639918689 + 66383581302544 = 12076367^2 + 8147612^2 .

It is a cyclic number.

It is not a de Polignac number, because 212222221221233 - 2⁴⁰ = 211122709593457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212222221221196 and 212222221221205.

It is not a weakly prime, because it can be changed into another prime (212222221221203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111110610616 + 106111110610617.

It is an arithmetic number, because the mean of its divisors is an integer number (106111110610617).

Almost surely, 2^{212222221221233} is an apocalyptic number.

It is an amenable number.

212222221221233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222221221233 is an equidigital number, since it uses as much as digits as its factorization.

212222221221233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 29.

Adding to 212222221221233 its reverse (332122122222212), we get a palindrome (544344343443445).

The spelling of 212222221221233 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty-three".