2144325431221 has 8 divisors (see below), whose sum is σ = 2239804270080. Its totient is φ = 2050282364592.

The previous prime is 2144325431179. The next prime is 2144325431249. The reversal of 2144325431221 is 1221345234412.

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-2144325431221 is a prime.

It is a super-2 number, since 2×2144325431221² (a number of 25 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 (2144325431021) 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, 358940005 + ... + 358945978.

It is an arithmetic number, because the mean of its divisors is an integer number (279975533760).

Almost surely, 2^{2144325431221} is an apocalyptic number.

It is an amenable number.

2144325431221 is a deficient number, since it is larger than the sum of its proper divisors (95478838859).

2144325431221 is a wasteful number, since it uses less digits than its factorization.

2144325431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717886115.

The product of its digits is 46080, while the sum is 34.

The spelling of 2144325431221 in words is "two trillion, one hundred forty-four billion, three hundred twenty-five million, four hundred thirty-one thousand, two hundred twenty-one".