20000220133 has 2 divisors, whose sum is σ = 20000220134. Its totient is φ = 20000220132.

The previous prime is 20000220073. The next prime is 20000220137. The reversal of 20000220133 is 33102200002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12841875684 + 7158344449 = 113322^2 + 84607^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000220133 - 2⁹ = 20000219621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000220137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000110066 + 10000110067.

It is an arithmetic number, because the mean of its divisors is an integer number (10000110067).

Almost surely, 2^20000220133 is an apocalyptic number.

It is an amenable number.

20000220133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000220133 is an equidigital number, since it uses as much as digits as its factorization.

20000220133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20000220133 its reverse (33102200002), we get a palindrome (53102420135).

The spelling of 20000220133 in words is "twenty billion, two hundred twenty thousand, one hundred thirty-three".