221032223131 has 4 divisors (see below), whose sum is σ = 222267040200. Its totient is φ = 219797406064.

The previous prime is 221032223117. The next prime is 221032223179. The reversal of 221032223131 is 131322230122.

221032223131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221032223131 - 2⁵ = 221032223099 is a prime.

It is a super-2 number, since 2×221032223131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221032223231) 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 3 ways as a sum of consecutive naturals, for example, 617408266 + ... + 617408623.

It is an arithmetic number, because the mean of its divisors is an integer number (55566760050).

Almost surely, 2^221032223131 is an apocalyptic number.

221032223131 is a deficient number, since it is larger than the sum of its proper divisors (1234817069).

221032223131 is a wasteful number, since it uses less digits than its factorization.

221032223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234817068.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221032223131 its reverse (131322230122), we get a palindrome (352354453253).

The spelling of 221032223131 in words is "two hundred twenty-one billion, thirty-two million, two hundred twenty-three thousand, one hundred thirty-one".