11222111011 has 8 divisors (see below), whose sum is σ = 11590398848. Its totient is φ = 10854216000.

The previous prime is 11222110973. The next prime is 11222111039. The reversal of 11222111011 is 11011122211.

It is a happy number.

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

It is not a de Polignac number, because 11222111011 - 2¹³ = 11222102819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222110982 and 11222111000.

It is not an unprimeable number, because it can be changed into a prime (11222111051) 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, 39570 + ... + 154951.

It is an arithmetic number, because the mean of its divisors is an integer number (1448799856).

Almost surely, 2^11222111011 is an apocalyptic number.

11222111011 is a deficient number, since it is larger than the sum of its proper divisors (368287837).

11222111011 is a wasteful number, since it uses less digits than its factorization.

11222111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196413.

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

Adding to 11222111011 its reverse (11011122211), we get a palindrome (22233233222).

The spelling of 11222111011 in words is "eleven billion, two hundred twenty-two million, one hundred eleven thousand, eleven".