11220072987 has 8 divisors (see below), whose sum is σ = 15170803200. Its totient is φ = 7374695720.

The previous prime is 11220072977. The next prime is 11220073013. The reversal of 11220072987 is 78927002211.

11220072987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11220072987 - 2⁷ = 11220072859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220072967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26337987 + ... + 26338412.

It is an arithmetic number, because the mean of its divisors is an integer number (1896350400).

Almost surely, 2^11220072987 is an apocalyptic number.

11220072987 is a deficient number, since it is larger than the sum of its proper divisors (3950730213).

11220072987 is an equidigital number, since it uses as much as digits as its factorization.

11220072987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52676473.

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 11220072987 in words is "eleven billion, two hundred twenty million, seventy-two thousand, nine hundred eighty-seven".