21342130222 has 16 divisors (see below), whose sum is σ = 37333173600. Its totient is φ = 9146626944.

The previous prime is 21342130211. The next prime is 21342130223. The reversal of 21342130222 is 22203124312.

It is a junction number, because it is equal to n+sod(n) for n = 21342130193 and 21342130202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342130223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15554803 + ... + 15556174.

It is an arithmetic number, because the mean of its divisors is an integer number (2333323350).

Almost surely, 2^21342130222 is an apocalyptic number.

21342130222 is a deficient number, since it is larger than the sum of its proper divisors (15991043378).

21342130222 is an equidigital number, since it uses as much as digits as its factorization.

21342130222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31111000 (or 31110986 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21342130222 its reverse (22203124312), we get a palindrome (43545254534).

The spelling of 21342130222 in words is "twenty-one billion, three hundred forty-two million, one hundred thirty thousand, two hundred twenty-two".