21422042230 has 8 divisors (see below), whose sum is σ = 38559676032. Its totient is φ = 8568816888.

The previous prime is 21422042203. The next prime is 21422042269. The reversal of 21422042230 is 3224022412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071102102 + ... + 1071102121.

It is an arithmetic number, because the mean of its divisors is an integer number (4819959504).

Almost surely, 2^21422042230 is an apocalyptic number.

21422042230 is a deficient number, since it is larger than the sum of its proper divisors (17137633802).

21422042230 is a wasteful number, since it uses less digits than its factorization.

21422042230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142204230.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 21422042230 its reverse (3224022412), we get a palindrome (24646064642).

The spelling of 21422042230 in words is "twenty-one billion, four hundred twenty-two million, forty-two thousand, two hundred thirty".