218011111701 has 8 divisors (see below), whose sum is σ = 303319807680. Its totient is φ = 139021578432.

The previous prime is 218011111691. The next prime is 218011111723. The reversal of 218011111701 is 107111110812.

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

It is not a de Polignac number, because 218011111701 - 2³⁰ = 216937369877 is a prime.

It is a super-2 number, since 2×218011111701² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218011111781) 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, 1579790596 + ... + 1579790733.

It is an arithmetic number, because the mean of its divisors is an integer number (37914975960).

Almost surely, 2^218011111701 is an apocalyptic number.

It is an amenable number.

218011111701 is a deficient number, since it is larger than the sum of its proper divisors (85308695979).

218011111701 is a wasteful number, since it uses less digits than its factorization.

218011111701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159581355.

The product of its (nonzero) digits is 112, while the sum is 24.

The spelling of 218011111701 in words is "two hundred eighteen billion, eleven million, one hundred eleven thousand, seven hundred one".