2142220421343 has 8 divisors (see below), whose sum is σ = 2903118385456. Its totient is φ = 1404734702400.

The previous prime is 2142220421339. The next prime is 2142220421417. The reversal of 2142220421343 is 3431240222412.

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

It is not a de Polignac number, because 2142220421343 - 2² = 2142220421339 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 2142220421343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142220421443) 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, 5853061078 + ... + 5853061443.

It is an arithmetic number, because the mean of its divisors is an integer number (362889798182).

Almost surely, 2^{2142220421343} is an apocalyptic number.

2142220421343 is a deficient number, since it is larger than the sum of its proper divisors (760897964113).

2142220421343 is a wasteful number, since it uses less digits than its factorization.

2142220421343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11706122585.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2142220421343 its reverse (3431240222412), we get a palindrome (5573460643755).

The spelling of 2142220421343 in words is "two trillion, one hundred forty-two billion, two hundred twenty million, four hundred twenty-one thousand, three hundred forty-three".