11020022111 has 8 divisors (see below), whose sum is σ = 12766836384. Its totient is φ = 9316339200.

The previous prime is 11020022063. The next prime is 11020022113. The reversal of 11020022111 is 11122002011.

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

It is a de Polignac number, because none of the positive numbers 2^k-11020022111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020022092 and 11020022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020022113) 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, 10782290 + ... + 10783311.

It is an arithmetic number, because the mean of its divisors is an integer number (1595854548).

Almost surely, 2^11020022111 is an apocalyptic number.

11020022111 is a deficient number, since it is larger than the sum of its proper divisors (1746814273).

11020022111 is an equidigital number, since it uses as much as digits as its factorization.

11020022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21565681.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11020022111 its reverse (11122002011), we get a palindrome (22142024122).

The spelling of 11020022111 in words is "eleven billion, twenty million, twenty-two thousand, one hundred eleven".