42421210143221 has 8 divisors (see below), whose sum is σ = 52210720176384. Its totient is φ = 33564034398960.

The previous prime is 42421210143211. The next prime is 42421210143229. The reversal of 42421210143221 is 12234101212424.

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

It is not a de Polignac number, because 42421210143221 - 2³⁰ = 42420136401397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421210143229) 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, 233083572125 + ... + 233083572306.

It is an arithmetic number, because the mean of its divisors is an integer number (6526340022048).

Almost surely, 2^{42421210143221} is an apocalyptic number.

It is an amenable number.

42421210143221 is a deficient number, since it is larger than the sum of its proper divisors (9789510033163).

42421210143221 is a wasteful number, since it uses less digits than its factorization.

42421210143221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466167144451.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 42421210143221 its reverse (12234101212424), we get a palindrome (54655311355645).

The spelling of 42421210143221 in words is "forty-two trillion, four hundred twenty-one billion, two hundred ten million, one hundred forty-three thousand, two hundred twenty-one".