221100221001122 has 8 divisors (see below), whose sum is σ = 331710951209472. Its totient is φ = 110529903931300.

The previous prime is 221100221001097. The next prime is 221100221001131. The reversal of 221100221001122 is 221100122001122.

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

It is a self number, because there is not a number n which added to its sum of digits gives 221100221001122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10103270954 + ... + 10103292837.

It is an arithmetic number, because the mean of its divisors is an integer number (41463868901184).

Almost surely, 2^{221100221001122} is an apocalyptic number.

221100221001122 is a deficient number, since it is larger than the sum of its proper divisors (110610730208350).

221100221001122 is a wasteful number, since it uses less digits than its factorization.

221100221001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20206569264.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221100221001122 its reverse (221100122001122), we get a palindrome (442200343002244).

The spelling of 221100221001122 in words is "two hundred twenty-one trillion, one hundred billion, two hundred twenty-one million, one thousand, one hundred twenty-two".