10211102212111 has 4 divisors (see below), whose sum is σ = 10229976708424. Its totient is φ = 10192227715800.

The previous prime is 10211102212067. The next prime is 10211102212133. The reversal of 10211102212111 is 11121220111201.

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 10211102212111 - 2¹³ = 10211102203919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211102212211) 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, 9437247345 + ... + 9437248426.

It is an arithmetic number, because the mean of its divisors is an integer number (2557494177106).

Almost surely, 2^{10211102212111} is an apocalyptic number.

10211102212111 is a deficient number, since it is larger than the sum of its proper divisors (18874496313).

10211102212111 is an equidigital number, since it uses as much as digits as its factorization.

10211102212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18874496312.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10211102212111 its reverse (11121220111201), we get a palindrome (21332322323312).

The spelling of 10211102212111 in words is "ten trillion, two hundred eleven billion, one hundred two million, two hundred twelve thousand, one hundred eleven".