11102021111 has 8 divisors (see below), whose sum is σ = 11127733344. Its totient is φ = 11076340000.

The previous prime is 11102021093. The next prime is 11102021137. The reversal of 11102021111 is 11112020111.

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-11102021111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102021092 and 11102021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102011111) 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, 800486 + ... + 814236.

It is an arithmetic number, because the mean of its divisors is an integer number (1390966668).

Almost surely, 2^11102021111 is an apocalyptic number.

11102021111 is a deficient number, since it is larger than the sum of its proper divisors (25712233).

11102021111 is a wasteful number, since it uses less digits than its factorization.

11102021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15561.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11102021111 its reverse (11112020111), we get a palindrome (22214041222).

The spelling of 11102021111 in words is "eleven billion, one hundred two million, twenty-one thousand, one hundred eleven".