21131132230222 has 16 divisors (see below), whose sum is σ = 36284476538880. Its totient is φ = 9041279919768.

The previous prime is 21131132230213. The next prime is 21131132230249. The reversal of 21131132230222 is 22203223113112.

It is a super-2 number, since 2×21131132230222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243291822 + ... + 1243308817.

It is an arithmetic number, because the mean of its divisors is an integer number (2267779783680).

Almost surely, 2^{21131132230222} is an apocalyptic number.

21131132230222 is a deficient number, since it is larger than the sum of its proper divisors (15153344308658).

21131132230222 is a wasteful number, since it uses less digits than its factorization.

21131132230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486601255.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21131132230222 its reverse (22203223113112), we get a palindrome (43334355343334).

The spelling of 21131132230222 in words is "twenty-one trillion, one hundred thirty-one billion, one hundred thirty-two million, two hundred thirty thousand, two hundred twenty-two".