2442143021221 has 8 divisors (see below), whose sum is σ = 2452700918304. Its totient is φ = 2431591698000.

The previous prime is 2442143021191. The next prime is 2442143021233. The reversal of 2442143021221 is 1221203412442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2442143021221 - 2¹⁹ = 2442142496933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2442143021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2442143021291) 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, 898146 + ... + 2385571.

It is an arithmetic number, because the mean of its divisors is an integer number (306587614788).

Almost surely, 2^{2442143021221} is an apocalyptic number.

It is an amenable number.

2442143021221 is a deficient number, since it is larger than the sum of its proper divisors (10557897083).

2442143021221 is a wasteful number, since it uses less digits than its factorization.

2442143021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286931.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 2442143021221 its reverse (1221203412442), we get a palindrome (3663346433663).

The spelling of 2442143021221 in words is "two trillion, four hundred forty-two billion, one hundred forty-three million, twenty-one thousand, two hundred twenty-one".