20002201012511 has 2 divisors, whose sum is σ = 20002201012512. Its totient is φ = 20002201012510.

The previous prime is 20002201012487. The next prime is 20002201012523. The reversal of 20002201012511 is 11521010220002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20002201012511 - 2⁶ = 20002201012447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20002201012511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002201012561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001100506255 + 10001100506256.

It is an arithmetic number, because the mean of its divisors is an integer number (10001100506256).

Almost surely, 2^{20002201012511} is an apocalyptic number.

20002201012511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002201012511 is an equidigital number, since it uses as much as digits as its factorization.

20002201012511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 20002201012511 its reverse (11521010220002), we get a palindrome (31523211232513).

The spelling of 20002201012511 in words is "twenty trillion, two billion, two hundred one million, twelve thousand, five hundred eleven".