1200420220033 has 2 divisors, whose sum is σ = 1200420220034. Its totient is φ = 1200420220032.

The previous prime is 1200420220007. The next prime is 1200420220037. The reversal of 1200420220033 is 3300220240021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1090004905089 + 110415314944 = 1044033^2 + 332288^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200420220033 - 2¹⁷ = 1200420088961 is a prime.

It is a super-2 number, since 2×1200420220033² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1200420220037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600210110016 + 600210110017.

It is an arithmetic number, because the mean of its divisors is an integer number (600210110017).

Almost surely, 2^{1200420220033} is an apocalyptic number.

It is an amenable number.

1200420220033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200420220033 is an equidigital number, since it uses as much as digits as its factorization.

1200420220033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 1200420220033 its reverse (3300220240021), we get a palindrome (4500640460054).

The spelling of 1200420220033 in words is "one trillion, two hundred billion, four hundred twenty million, two hundred twenty thousand, thirty-three".