20210111210011 has 8 divisors (see below), whose sum is σ = 20313419724000. Its totient is φ = 20106820198080.

The previous prime is 20210111209973. The next prime is 20210111210027. The reversal of 20210111210011 is 11001211101202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20210111210011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210111209973 and 20210111210000.

It is not an unprimeable number, because it can be changed into a prime (20210111214011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057026 + ... + 6682183.

It is an arithmetic number, because the mean of its divisors is an integer number (2539177465500).

Almost surely, 2^{20210111210011} is an apocalyptic number.

20210111210011 is a deficient number, since it is larger than the sum of its proper divisors (103308513989).

20210111210011 is a wasteful number, since it uses less digits than its factorization.

20210111210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751029.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20210111210011 its reverse (11001211101202), we get a palindrome (31211322311213).

The spelling of 20210111210011 in words is "twenty trillion, two hundred ten billion, one hundred eleven million, two hundred ten thousand, eleven".