20212211221333 has 2 divisors, whose sum is σ = 20212211221334. Its totient is φ = 20212211221332.

The previous prime is 20212211221219. The next prime is 20212211221357. The reversal of 20212211221333 is 33312211221202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20146973377444 + 65237843889 = 4488538^2 + 255417^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212211221333 - 2⁴¹ = 18013187965781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212211221298 and 20212211221307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212211221633) 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, 10106105610666 + 10106105610667.

It is an arithmetic number, because the mean of its divisors is an integer number (10106105610667).

Almost surely, 2^{20212211221333} is an apocalyptic number.

It is an amenable number.

20212211221333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212211221333 is an equidigital number, since it uses as much as digits as its factorization.

20212211221333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20212211221333 its reverse (33312211221202), we get a palindrome (53524422442535).

The spelling of 20212211221333 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, three hundred thirty-three".