221102012121101 has 8 divisors (see below), whose sum is σ = 232531797755904. Its totient is φ = 209823614375760.

The previous prime is 221102012121037. The next prime is 221102012121113. The reversal of 221102012121101 is 101121210201122.

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

It is a cyclic number.

It is not a de Polignac number, because 221102012121101 - 2⁶ = 221102012121037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 221102012121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102012121161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37846969370 + ... + 37846975211.

It is an arithmetic number, because the mean of its divisors is an integer number (29066474719488).

Almost surely, 2^{221102012121101} is an apocalyptic number.

It is an amenable number.

221102012121101 is a deficient number, since it is larger than the sum of its proper divisors (11429785634803).

221102012121101 is a wasteful number, since it uses less digits than its factorization.

221102012121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75693944731.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221102012121101 its reverse (101121210201122), we get a palindrome (322223222322223).

The spelling of 221102012121101 in words is "two hundred twenty-one trillion, one hundred two billion, twelve million, one hundred twenty-one thousand, one hundred one".