221001102101 has 12 divisors (see below), whose sum is σ = 239461502400. Its totient is φ = 203870918160.

The previous prime is 221001102071. The next prime is 221001102149. The reversal of 221001102101 is 101201100122.

221001102101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221001102101 - 2¹⁰ = 221001101077 is a prime.

It is a super-2 number, since 2×221001102101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221001104101) 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 11 ways as a sum of consecutive naturals, for example, 150701 + ... + 681698.

It is an arithmetic number, because the mean of its divisors is an integer number (19955125200).

Almost surely, 2^221001102101 is an apocalyptic number.

It is an amenable number.

221001102101 is a deficient number, since it is larger than the sum of its proper divisors (18460400299).

221001102101 is a wasteful number, since it uses less digits than its factorization.

221001102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833996 (or 833983 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221001102101 its reverse (101201100122), we get a palindrome (322202202223).

The spelling of 221001102101 in words is "two hundred twenty-one billion, one million, one hundred two thousand, one hundred one".