221132142205 has 16 divisors (see below), whose sum is σ = 287206819200. Its totient is φ = 162476981568.

The previous prime is 221132142193. The next prime is 221132142211. The reversal of 221132142205 is 502241231122.

It is a cyclic number.

It is not a de Polignac number, because 221132142205 - 2³³ = 212542207613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221132142205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8534887 + ... + 8560756.

It is an arithmetic number, because the mean of its divisors is an integer number (17950426200).

Almost surely, 2^221132142205 is an apocalyptic number.

It is an amenable number.

221132142205 is a deficient number, since it is larger than the sum of its proper divisors (66074676995).

221132142205 is a wasteful number, since it uses less digits than its factorization.

221132142205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17095860.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 221132142205 its reverse (502241231122), we get a palindrome (723373373327).

The spelling of 221132142205 in words is "two hundred twenty-one billion, one hundred thirty-two million, one hundred forty-two thousand, two hundred five".