144100112431221 has 6 divisors (see below), whose sum is σ = 208144606845110. Its totient is φ = 96066741620808.

The previous prime is 144100112431213. The next prime is 144100112431277. The reversal of 144100112431221 is 122134211001441.

144100112431221 is a `hidden beast` number, since 1 + 4 + 4 + 1 + 0 + 0 + 1 + 1 + 2 + 431 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 90991567102500 + 53108545328721 = 9538950^2 + 7287561^2 .

It is not a de Polignac number, because 144100112431221 - 2³ = 144100112431213 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 (144100112431721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8005561801726 + ... + 8005561801743.

Almost surely, 2^{144100112431221} is an apocalyptic number.

It is an amenable number.

144100112431221 is a deficient number, since it is larger than the sum of its proper divisors (64044494413889).

144100112431221 is a wasteful number, since it uses less digits than its factorization.

144100112431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16011123603475 (or 16011123603472 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 144100112431221 its reverse (122134211001441), we get a palindrome (266234323432662).

The spelling of 144100112431221 in words is "one hundred forty-four trillion, one hundred billion, one hundred twelve million, four hundred thirty-one thousand, two hundred twenty-one".