221111202002122 has 8 divisors (see below), whose sum is σ = 331689263046336. Its totient is φ = 110548114320012.

The previous prime is 221111202002111. The next prime is 221111202002147. The reversal of 221111202002122 is 221200202111122.

221111202002122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221111202002122.

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, 3743303608 + ... + 3743362675.

It is an arithmetic number, because the mean of its divisors is an integer number (41461157880792).

Almost surely, 2^{221111202002122} is an apocalyptic number.

221111202002122 is a deficient number, since it is larger than the sum of its proper divisors (110578061044214).

221111202002122 is a wasteful number, since it uses less digits than its factorization.

221111202002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486681052.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221111202002122 its reverse (221200202111122), we get a palindrome (442311404113244).

The spelling of 221111202002122 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred two million, two thousand, one hundred twenty-two".