20213501212033 has 2 divisors, whose sum is σ = 20213501212034. Its totient is φ = 20213501212032.

The previous prime is 20213501211977. The next prime is 20213501212061. The reversal of 20213501212033 is 33021210531202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16533518896449 + 3679982315584 = 4066143^2 + 1918328^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213501212033 - 2¹⁷ = 20213501080961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20213501211989 and 20213501212007.

It is not a weakly prime, because it can be changed into another prime (20213501212633) 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, 10106750606016 + 10106750606017.

It is an arithmetic number, because the mean of its divisors is an integer number (10106750606017).

Almost surely, 2^{20213501212033} is an apocalyptic number.

It is an amenable number.

20213501212033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213501212033 is an equidigital number, since it uses as much as digits as its factorization.

20213501212033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 20213501212033 its reverse (33021210531202), we get a palindrome (53234711743235).

The spelling of 20213501212033 in words is "twenty trillion, two hundred thirteen billion, five hundred one million, two hundred twelve thousand, thirty-three".