21222404442014 has 8 divisors (see below), whose sum is σ = 31833674552928. Its totient is φ = 10611179591040.

The previous prime is 21222404441951. The next prime is 21222404442047. The reversal of 21222404442014 is 41024440422212.

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, 10117382 + ... + 12033545.

It is an arithmetic number, because the mean of its divisors is an integer number (3979209319116).

Almost surely, 2^{21222404442014} is an apocalyptic number.

21222404442014 is a deficient number, since it is larger than the sum of its proper divisors (10611270110914).

21222404442014 is a wasteful number, since it uses less digits than its factorization.

21222404442014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22629970.

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 21222404442014 its reverse (41024440422212), we get a palindrome (62246844864226).

The spelling of 21222404442014 in words is "twenty-one trillion, two hundred twenty-two billion, four hundred four million, four hundred forty-two thousand, fourteen".