220121020033 has 2 divisors, whose sum is σ = 220121020034. Its totient is φ = 220121020032.

The previous prime is 220121019997. The next prime is 220121020039. The reversal of 220121020033 is 330020121022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137712983409 + 82408036624 = 371097^2 + 287068^2 .

It is a cyclic number.

It is not a de Polignac number, because 220121020033 - 2²⁵ = 220087465601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220121019989 and 220121020016.

It is not a weakly prime, because it can be changed into another prime (220121020039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060510016 + 110060510017.

It is an arithmetic number, because the mean of its divisors is an integer number (110060510017).

Almost surely, 2^220121020033 is an apocalyptic number.

It is an amenable number.

220121020033 is a deficient number, since it is larger than the sum of its proper divisors (1).

220121020033 is an equidigital number, since it uses as much as digits as its factorization.

220121020033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 220121020033 its reverse (330020121022), we get a palindrome (550141141055).

The spelling of 220121020033 in words is "two hundred twenty billion, one hundred twenty-one million, twenty thousand, thirty-three".