21442023402226 has 8 divisors (see below), whose sum is σ = 36757754403840. Its totient is φ = 9189438600948.

The previous prime is 21442023402047. The next prime is 21442023402227. The reversal of 21442023402226 is 62220432024412.

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

It is a junction number, because it is equal to n+sod(n) for n = 21442023402191 and 21442023402200.

It is not an unprimeable number, because it can be changed into a prime (21442023402227) 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, 765786550066 + ... + 765786550093.

It is an arithmetic number, because the mean of its divisors is an integer number (4594719300480).

Almost surely, 2^{21442023402226} is an apocalyptic number.

21442023402226 is a deficient number, since it is larger than the sum of its proper divisors (15315731001614).

21442023402226 is a wasteful number, since it uses less digits than its factorization.

21442023402226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531573100168.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 21442023402226 its reverse (62220432024412), we get a palindrome (83662455426638).

The spelling of 21442023402226 in words is "twenty-one trillion, four hundred forty-two billion, twenty-three million, four hundred two thousand, two hundred twenty-six".