2222222221342 has 4 divisors (see below), whose sum is σ = 3333333332016. Its totient is φ = 1111111110670.

The previous prime is 2222222221319. The next prime is 2222222221343. The reversal of 2222222221342 is 2431222222222.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2222222221342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222222221343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555555555334 + ... + 555555555337.

It is an arithmetic number, because the mean of its divisors is an integer number (833333333004).

Almost surely, 2^{2222222221342} is an apocalyptic number.

2222222221342 is a deficient number, since it is larger than the sum of its proper divisors (1111111110674).

2222222221342 is a wasteful number, since it uses less digits than its factorization.

2222222221342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111111110673.

The product of its digits is 12288, while the sum is 28.

Adding to 2222222221342 its reverse (2431222222222), we get a palindrome (4653444443564).

The spelling of 2222222221342 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, three hundred forty-two".