21223023230222 has 16 divisors (see below), whose sum is σ = 34733019639600. Its totient is φ = 9645596471040.

The previous prime is 21223023230159. The next prime is 21223023230273. The reversal of 21223023230222 is 22203232032212.

It is a junction number, because it is equal to n+sod(n) for n = 21223023230191 and 21223023230200.

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, 61437347 + ... + 61781822.

It is an arithmetic number, because the mean of its divisors is an integer number (2170813727475).

Almost surely, 2^{21223023230222} is an apocalyptic number.

21223023230222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21223023230222 is a deficient number, since it is larger than the sum of its proper divisors (13509996409378).

21223023230222 is a wasteful number, since it uses less digits than its factorization.

21223023230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123227011.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 21223023230222 its reverse (22203232032212), we get a palindrome (43426255262434).

The spelling of 21223023230222 in words is "twenty-one trillion, two hundred twenty-three billion, twenty-three million, two hundred thirty thousand, two hundred twenty-two".