2143144201221 has 24 divisors (see below), whose sum is σ = 3128278982400. Its totient is φ = 1413777458016.

The previous prime is 2143144201183. The next prime is 2143144201229. The reversal of 2143144201221 is 1221024413412.

2143144201221 is a `hidden beast` number, since 2 + 1 + 4 + 3 + 14 + 420 + 1 + 221 = 666.

It is not a de Polignac number, because 2143144201221 - 2¹⁵ = 2143144168453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143144201229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2685661 + ... + 3391026.

It is an arithmetic number, because the mean of its divisors is an integer number (130344957600).

Almost surely, 2^{2143144201221} is an apocalyptic number.

It is an amenable number.

2143144201221 is a deficient number, since it is larger than the sum of its proper divisors (985134781179).

2143144201221 is a wasteful number, since it uses less digits than its factorization.

2143144201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6077105 (or 6077102 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 2143144201221 its reverse (1221024413412), we get a palindrome (3364168614633).

The spelling of 2143144201221 in words is "two trillion, one hundred forty-three billion, one hundred forty-four million, two hundred one thousand, two hundred twenty-one".