142355062243221 has 8 divisors (see below), whose sum is σ = 189808258706784. Its totient is φ = 94902620304240.

The previous prime is 142355062243217. The next prime is 142355062243249. The reversal of 142355062243221 is 122342260553241.

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

It is not a de Polignac number, because 142355062243221 - 2² = 142355062243217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142355062243321) 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, 188190771 + ... + 188945696.

It is an arithmetic number, because the mean of its divisors is an integer number (23726032338348).

Almost surely, 2^{142355062243221} is an apocalyptic number.

It is an amenable number.

142355062243221 is a deficient number, since it is larger than the sum of its proper divisors (47453196463563).

142355062243221 is a wasteful number, since it uses less digits than its factorization.

142355062243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377262291.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 142355062243221 in words is "one hundred forty-two trillion, three hundred fifty-five billion, sixty-two million, two hundred forty-three thousand, two hundred twenty-one".