20002201109993 has 2 divisors, whose sum is σ = 20002201109994. Its totient is φ = 20002201109992.

The previous prime is 20002201109971. The next prime is 20002201110071. The reversal of 20002201109993 is 39990110220002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19234118891584 + 768082218409 = 4385672^2 + 876403^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002201109993 - 2¹⁶ = 20002201044457 is a prime.

It is not a weakly prime, because it can be changed into another prime (20002201009993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001100554996 + 10001100554997.

It is an arithmetic number, because the mean of its divisors is an integer number (10001100554997).

Almost surely, 2^{20002201109993} is an apocalyptic number.

It is an amenable number.

20002201109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002201109993 is an equidigital number, since it uses as much as digits as its factorization.

20002201109993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

Adding to 20002201109993 its reverse (39990110220002), we get a palindrome (59992311329995).

The spelling of 20002201109993 in words is "twenty trillion, two billion, two hundred one million, one hundred nine thousand, nine hundred ninety-three".