10211102020111 has 4 divisors (see below), whose sum is σ = 10264563287424. Its totient is φ = 10157640752800.

The previous prime is 10211102020087. The next prime is 10211102020139. The reversal of 10211102020111 is 11102020111201.

It is a happy number.

10211102020111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10211102020111 - 2⁵ = 10211102020079 is a prime.

It is a super-2 number, since 2×10211102020111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211102020091 and 10211102020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211102020411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26730633370 + ... + 26730633751.

It is an arithmetic number, because the mean of its divisors is an integer number (2566140821856).

Almost surely, 2^{10211102020111} is an apocalyptic number.

10211102020111 is a deficient number, since it is larger than the sum of its proper divisors (53461267313).

10211102020111 is an equidigital number, since it uses as much as digits as its factorization.

10211102020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53461267312.

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

Adding to 10211102020111 its reverse (11102020111201), we get a palindrome (21313122131312).

The spelling of 10211102020111 in words is "ten trillion, two hundred eleven billion, one hundred two million, twenty thousand, one hundred eleven".