11121216051 has 8 divisors (see below), whose sum is σ = 16176314304. Its totient is φ = 6740130920.

The previous prime is 11121216023. The next prime is 11121216079. The reversal of 11121216051 is 15061212111.

It is an interprime number because it is at equal distance from previous prime (11121216023) and next prime (11121216079).

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 11121216051 - 2⁵ = 11121216019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11121416051) 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, 168503241 + ... + 168503306.

It is an arithmetic number, because the mean of its divisors is an integer number (2022039288).

Almost surely, 2^11121216051 is an apocalyptic number.

11121216051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121216051 is a deficient number, since it is larger than the sum of its proper divisors (5055098253).

11121216051 is a wasteful number, since it uses less digits than its factorization.

11121216051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337006561.

The product of its (nonzero) digits is 120, while the sum is 21.

Adding to 11121216051 its reverse (15061212111), we get a palindrome (26182428162).

The spelling of 11121216051 in words is "eleven billion, one hundred twenty-one million, two hundred sixteen thousand, fifty-one".