222112102001 has 4 divisors (see below), whose sum is σ = 222159154404. Its totient is φ = 222065049600.

The previous prime is 222112101973. The next prime is 222112102013. The reversal of 222112102001 is 100201211222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 89954405776 + 132157696225 = 299924^2 + 363535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222112102001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222112102081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23519120 + ... + 23528561.

It is an arithmetic number, because the mean of its divisors is an integer number (55539788601).

Almost surely, 2^222112102001 is an apocalyptic number.

It is an amenable number.

222112102001 is a deficient number, since it is larger than the sum of its proper divisors (47052403).

222112102001 is an equidigital number, since it uses as much as digits as its factorization.

222112102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47052402.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222112102001 its reverse (100201211222), we get a palindrome (322313313223).

It can be divided in two parts, 22211 and 2102001, that added together give a palindrome (2124212).

The spelling of 222112102001 in words is "two hundred twenty-two billion, one hundred twelve million, one hundred two thousand, one".