11208122111 has 8 divisors (see below), whose sum is σ = 11698232544. Its totient is φ = 10718245120.

The previous prime is 11208122099. The next prime is 11208122131. The reversal of 11208122111 is 11122180211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11208122111 - 2⁶ = 11208122047 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 (11208122131) 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, 43571 + ... + 155931.

It is an arithmetic number, because the mean of its divisors is an integer number (1462279068).

Almost surely, 2^11208122111 is an apocalyptic number.

11208122111 is a deficient number, since it is larger than the sum of its proper divisors (490110433).

11208122111 is a wasteful number, since it uses less digits than its factorization.

11208122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116721.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 11208122111 in words is "eleven billion, two hundred eight million, one hundred twenty-two thousand, one hundred eleven".