221131200101 has 16 divisors (see below), whose sum is σ = 271974021120. Its totient is φ = 175467098880.

The previous prime is 221131200071. The next prime is 221131200109. The reversal of 221131200101 is 101002131122.

It is a cyclic number.

It is not a de Polignac number, because 221131200101 - 2¹⁴ = 221131183717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221131200109) 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, 15224261 + ... + 15238778.

It is an arithmetic number, because the mean of its divisors is an integer number (16998376320).

Almost surely, 2^221131200101 is an apocalyptic number.

It is an amenable number.

221131200101 is a deficient number, since it is larger than the sum of its proper divisors (50842821019).

221131200101 is a wasteful number, since it uses less digits than its factorization.

221131200101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30463124.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221131200101 its reverse (101002131122), we get a palindrome (322133331223).

The spelling of 221131200101 in words is "two hundred twenty-one billion, one hundred thirty-one million, two hundred thousand, one hundred one".