144021222241 has 8 divisors (see below), whose sum is σ = 155107961960. Its totient is φ = 132935651712.

The previous prime is 144021222229. The next prime is 144021222263. The reversal of 144021222241 is 142222120441.

It can be written as a sum of positive squares in 4 ways, for example, as 7949505600 + 136071716641 = 89160^2 + 368879^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144021222241 is a prime.

It is a super-2 number, since 2×144021222241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144021222221) 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, 27570 + ... + 537403.

It is an arithmetic number, because the mean of its divisors is an integer number (19388495245).

Almost surely, 2^144021222241 is an apocalyptic number.

It is an amenable number.

144021222241 is a deficient number, since it is larger than the sum of its proper divisors (11086739719).

144021222241 is a wasteful number, since it uses less digits than its factorization.

144021222241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584595.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 144021222241 its reverse (142222120441), we get a palindrome (286243342682).

The spelling of 144021222241 in words is "one hundred forty-four billion, twenty-one million, two hundred twenty-two thousand, two hundred forty-one".