11111552211 has 8 divisors (see below), whose sum is σ = 14821828560. Its totient is φ = 7404488672.

The previous prime is 11111552197. The next prime is 11111552233. The reversal of 11111552211 is 11225511111.

11111552211 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 11111552211 - 2⁷ = 11111552083 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11111552411) 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, 795120 + ... + 808973.

It is an arithmetic number, because the mean of its divisors is an integer number (1852728570).

Almost surely, 2^11111552211 is an apocalyptic number.

11111552211 is a deficient number, since it is larger than the sum of its proper divisors (3710276349).

11111552211 is a wasteful number, since it uses less digits than its factorization.

11111552211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606405.

The product of its digits is 100, while the sum is 21.

The spelling of 11111552211 in words is "eleven billion, one hundred eleven million, five hundred fifty-two thousand, two hundred eleven".