22131230010221 has 12 divisors (see below), whose sum is σ = 22868528197536. Its totient is φ = 21416983923960.

The previous prime is 22131230010193. The next prime is 22131230010229. The reversal of 22131230010221 is 12201003213122.

It is not a de Polignac number, because 22131230010221 - 2¹⁸ = 22131229748077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22131230010193 and 22131230010202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131230010229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79530890 + ... + 79808676.

It is an arithmetic number, because the mean of its divisors is an integer number (1905710683128).

Almost surely, 2^{22131230010221} is an apocalyptic number.

It is an amenable number.

22131230010221 is a deficient number, since it is larger than the sum of its proper divisors (737298187315).

22131230010221 is an equidigital number, since it uses as much as digits as its factorization.

22131230010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360752 (or 360721 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22131230010221 its reverse (12201003213122), we get a palindrome (34332233223343).

The spelling of 22131230010221 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred thirty million, ten thousand, two hundred twenty-one".