20112021100011 has 16 divisors (see below), whose sum is σ = 26993873938464. Its totient is φ = 13319135741184.

The previous prime is 20112021099971. The next prime is 20112021100013. The reversal of 20112021100011 is 11000112021102.

It is not a de Polignac number, because 20112021100011 - 2¹⁷ = 20112020968939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20112021100011.

It is not an unprimeable number, because it can be changed into a prime (20112021100013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3764796 + ... + 7375481.

It is an arithmetic number, because the mean of its divisors is an integer number (1687117121154).

Almost surely, 2^{20112021100011} is an apocalyptic number.

20112021100011 is a deficient number, since it is larger than the sum of its proper divisors (6881852838453).

20112021100011 is a wasteful number, since it uses less digits than its factorization.

20112021100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11144270.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20112021100011 its reverse (11000112021102), we get a palindrome (31112133121113).

The spelling of 20112021100011 in words is "twenty trillion, one hundred twelve billion, twenty-one million, one hundred thousand, eleven".