144434141712221 has 16 divisors (see below), whose sum is σ = 152275212835200. Its totient is φ = 136809083062848.

The previous prime is 144434141712149. The next prime is 144434141712293. The reversal of 144434141712221 is 122217141434441.

It is an interprime number because it is at equal distance from previous prime (144434141712149) and next prime (144434141712293).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144434141712221 is a prime.

It is a super-2 number, since 2×144434141712221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144434141742221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225634826 + ... + 226274043.

It is an arithmetic number, because the mean of its divisors is an integer number (9517200802200).

Almost surely, 2^{144434141712221} is an apocalyptic number.

It is an amenable number.

144434141712221 is a deficient number, since it is larger than the sum of its proper divisors (7841071122979).

144434141712221 is a wasteful number, since it uses less digits than its factorization.

144434141712221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451909108.

The product of its digits is 172032, while the sum is 41.

The spelling of 144434141712221 in words is "one hundred forty-four trillion, four hundred thirty-four billion, one hundred forty-one million, seven hundred twelve thousand, two hundred twenty-one".