221102120112211 has 8 divisors (see below), whose sum is σ = 238142375931600. Its totient is φ = 204066492925152.

The previous prime is 221102120112199. The next prime is 221102120112323. The reversal of 221102120112211 is 112211021201122.

It is a happy number.

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

It is not a de Polignac number, because 221102120112211 - 2⁹ = 221102120111699 is a prime.

It is a super-2 number, since 2×221102120112211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221102120115211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157058865 + ... + 1157249938.

It is an arithmetic number, because the mean of its divisors is an integer number (29767796991450).

Almost surely, 2^{221102120112211} is an apocalyptic number.

221102120112211 is a deficient number, since it is larger than the sum of its proper divisors (17040255819389).

221102120112211 is a wasteful number, since it uses less digits than its factorization.

221102120112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314316165.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221102120112211 its reverse (112211021201122), we get a palindrome (333313141313333).

It can be divided in two parts, 2211021201122 and 11, that multiplied together give a palindrome (24321233212342).

The spelling of 221102120112211 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred twenty million, one hundred twelve thousand, two hundred eleven".