221241102101 has 16 divisors (see below), whose sum is σ = 228245895360. Its totient is φ = 214343775360.

The previous prime is 221241102097. The next prime is 221241102193. The reversal of 221241102101 is 101201142122.

It is a cyclic number.

It is not a de Polignac number, because 221241102101 - 2² = 221241102097 is a prime.

It is a super-2 number, since 2×221241102101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221241102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221241182101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9573881 + ... + 9596961.

It is an arithmetic number, because the mean of its divisors is an integer number (14265368460).

Almost surely, 2^221241102101 is an apocalyptic number.

It is an amenable number.

221241102101 is a deficient number, since it is larger than the sum of its proper divisors (7004793259).

221241102101 is a wasteful number, since it uses less digits than its factorization.

221241102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25396.

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

Adding to 221241102101 its reverse (101201142122), we get a palindrome (322442244223).

The spelling of 221241102101 in words is "two hundred twenty-one billion, two hundred forty-one million, one hundred two thousand, one hundred one".