20010202001111 has 16 divisors (see below), whose sum is σ = 23870279867904. Its totient is φ = 16400942394144.

The previous prime is 20010202001107. The next prime is 20010202001117. The reversal of 20010202001111 is 11110020201002.

It is not a de Polignac number, because 20010202001111 - 2² = 20010202001107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010202001092 and 20010202001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010202001117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18166016 + ... + 19236021.

It is an arithmetic number, because the mean of its divisors is an integer number (1491892491744).

Almost surely, 2^{20010202001111} is an apocalyptic number.

20010202001111 is a deficient number, since it is larger than the sum of its proper divisors (3860077866793).

20010202001111 is a wasteful number, since it uses less digits than its factorization.

20010202001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37405390.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20010202001111 its reverse (11110020201002), we get a palindrome (31120222202113).

The spelling of 20010202001111 in words is "twenty trillion, ten billion, two hundred two million, one thousand, one hundred eleven".