221200131101 has 4 divisors (see below), whose sum is σ = 221205417600. Its totient is φ = 221194844604.

The previous prime is 221200131067. The next prime is 221200131121. The reversal of 221200131101 is 101131002122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101131002122 = 2 ⋅50565501061.

It is a cyclic number.

It is not a de Polignac number, because 221200131101 - 2¹⁴ = 221200114717 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 (221200131121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2579981 + ... + 2664338.

It is an arithmetic number, because the mean of its divisors is an integer number (55301354400).

Almost surely, 2^221200131101 is an apocalyptic number.

It is an amenable number.

221200131101 is a deficient number, since it is larger than the sum of its proper divisors (5286499).

221200131101 is an equidigital number, since it uses as much as digits as its factorization.

221200131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286498.

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

Adding to 221200131101 its reverse (101131002122), we get a palindrome (322331133223).

The spelling of 221200131101 in words is "two hundred twenty-one billion, two hundred million, one hundred thirty-one thousand, one hundred one".