1222220112142 has 8 divisors (see below), whose sum is σ = 1860693305256. Its totient is φ = 601989010392.

The previous prime is 1222220112109. The next prime is 1222220112173. The reversal of 1222220112142 is 2412110222221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4560522673 + ... + 4560522940.

It is an arithmetic number, because the mean of its divisors is an integer number (232586663157).

Almost surely, 2^{1222220112142} is an apocalyptic number.

1222220112142 is a deficient number, since it is larger than the sum of its proper divisors (638473193114).

1222220112142 is an equidigital number, since it uses as much as digits as its factorization.

1222220112142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121045682.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1222220112142 its reverse (2412110222221), we get a palindrome (3634330334363).

The spelling of 1222220112142 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, one hundred forty-two".