144566106221 has 4 divisors (see below), whose sum is σ = 144723415200. Its totient is φ = 144408797244.

The previous prime is 144566106203. The next prime is 144566106229. The reversal of 144566106221 is 122601665441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122601665441 = 17 ⋅7211862673.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144566106221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144566106229) 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, 78653111 + ... + 78654948.

It is an arithmetic number, because the mean of its divisors is an integer number (36180853800).

Almost surely, 2^144566106221 is an apocalyptic number.

It is an amenable number.

144566106221 is a deficient number, since it is larger than the sum of its proper divisors (157308979).

144566106221 is an equidigital number, since it uses as much as digits as its factorization.

144566106221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157308978.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 144566106221 in words is "one hundred forty-four billion, five hundred sixty-six million, one hundred six thousand, two hundred twenty-one".