18112042201 has 8 divisors (see below), whose sum is σ = 20798517600. Its totient is φ = 15598887840.

The previous prime is 18112042177. The next prime is 18112042213. The reversal of 18112042201 is 10224021181.

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 18112042201 - 2⁷ = 18112042073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18112042241) 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, 43330036 + ... + 43330453.

It is an arithmetic number, because the mean of its divisors is an integer number (2599814700).

Almost surely, 2^18112042201 is an apocalyptic number.

18112042201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18112042201 is a deficient number, since it is larger than the sum of its proper divisors (2686475399).

18112042201 is a wasteful number, since it uses less digits than its factorization.

18112042201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86660519.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 18112042201 its reverse (10224021181), we get a palindrome (28336063382).

The spelling of 18112042201 in words is "eighteen billion, one hundred twelve million, forty-two thousand, two hundred one".