21442101422 has 8 divisors (see below), whose sum is σ = 36757888176. Its totient is φ = 9189472032.

The previous prime is 21442101419. The next prime is 21442101427. The reversal of 21442101422 is 22410124412.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21442101427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765789323 + ... + 765789350.

It is an arithmetic number, because the mean of its divisors is an integer number (4594736022).

Almost surely, 2^21442101422 is an apocalyptic number.

21442101422 is a deficient number, since it is larger than the sum of its proper divisors (15315786754).

21442101422 is a wasteful number, since it uses less digits than its factorization.

21442101422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531578682.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 21442101422 its reverse (22410124412), we get a palindrome (43852225834).

The spelling of 21442101422 in words is "twenty-one billion, four hundred forty-two million, one hundred one thousand, four hundred twenty-two".