112201121001218 has 4 divisors (see below), whose sum is σ = 168301681501830. Its totient is φ = 56100560500608.

The previous prime is 112201121001217. The next prime is 112201121001239. The reversal of 112201121001218 is 812100121102211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83936618626249 + 28264502374969 = 9161693^2 + 5316437^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112201121001193 and 112201121001202.

It is not an unprimeable number, because it can be changed into a prime (112201121001217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28050280250303 + ... + 28050280250306.

Almost surely, 2^{112201121001218} is an apocalyptic number.

112201121001218 is a deficient number, since it is larger than the sum of its proper divisors (56100560500612).

112201121001218 is an equidigital number, since it uses as much as digits as its factorization.

112201121001218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56100560500611.

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 112201121001218 its reverse (812100121102211), we get a palindrome (924301242103429).

The spelling of 112201121001218 in words is "one hundred twelve trillion, two hundred one billion, one hundred twenty-one million, one thousand, two hundred eighteen".