11212212079 has 16 divisors (see below), whose sum is σ = 12115461600. Its totient is φ = 10338223104.

The previous prime is 11212212073. The next prime is 11212212133. The reversal of 11212212079 is 97021221211.

It is a cyclic number.

It is not a de Polignac number, because 11212212079 - 2⁵ = 11212212047 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 (11212212073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130924 + ... + 198910.

It is an arithmetic number, because the mean of its divisors is an integer number (757216350).

Almost surely, 2^11212212079 is an apocalyptic number.

11212212079 is a deficient number, since it is larger than the sum of its proper divisors (903249521).

11212212079 is a wasteful number, since it uses less digits than its factorization.

11212212079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68202.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 11212212079 in words is "eleven billion, two hundred twelve million, two hundred twelve thousand, seventy-nine".