22144014221 has 8 divisors (see below), whose sum is σ = 26407768704. Its totient is φ = 18155340720.

The previous prime is 22144014199. The next prime is 22144014223. The reversal of 22144014221 is 12241044122.

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

It is not a de Polignac number, because 22144014221 - 2⁶ = 22144014157 is a prime.

It is a super-4 number, since 4×22144014221⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144014223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68770070 + ... + 68770391.

It is an arithmetic number, because the mean of its divisors is an integer number (3300971088).

Almost surely, 2^22144014221 is an apocalyptic number.

It is an amenable number.

22144014221 is a deficient number, since it is larger than the sum of its proper divisors (4263754483).

22144014221 is a wasteful number, since it uses less digits than its factorization.

22144014221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137540491.

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

Adding to 22144014221 its reverse (12241044122), we get a palindrome (34385058343).

The spelling of 22144014221 in words is "twenty-two billion, one hundred forty-four million, fourteen thousand, two hundred twenty-one".