221001100001122 has 8 divisors (see below), whose sum is σ = 378859028573376. Its totient is φ = 94714757143332.

The previous prime is 221001100001117. The next prime is 221001100001161. The reversal of 221001100001122 is 221100001100122.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7892896428598 + ... + 7892896428625.

It is an arithmetic number, because the mean of its divisors is an integer number (47357378571672).

Almost surely, 2^{221001100001122} is an apocalyptic number.

221001100001122 is a deficient number, since it is larger than the sum of its proper divisors (157857928572254).

221001100001122 is a wasteful number, since it uses less digits than its factorization.

221001100001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15785792857232.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221001100001122 its reverse (221100001100122), we get a palindrome (442101101101244).

The spelling of 221001100001122 in words is "two hundred twenty-one trillion, one billion, one hundred million, one thousand, one hundred twenty-two".