1220031205342 has 8 divisors (see below), whose sum is σ = 1846836228600. Its totient is φ = 604419129144.

The previous prime is 1220031205339. The next prime is 1220031205361. The reversal of 1220031205342 is 2435021300221.

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

It is a super-2 number, since 2×1220031205342² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2798236492 + ... + 2798236927.

It is an arithmetic number, because the mean of its divisors is an integer number (230854528575).

Almost surely, 2^{1220031205342} is an apocalyptic number.

1220031205342 is a deficient number, since it is larger than the sum of its proper divisors (626805023258).

1220031205342 is a wasteful number, since it uses less digits than its factorization.

1220031205342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596473530.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 1220031205342 its reverse (2435021300221), we get a palindrome (3655052505563).

The spelling of 1220031205342 in words is "one trillion, two hundred twenty billion, thirty-one million, two hundred five thousand, three hundred forty-two".