1220421041342 has 16 divisors (see below), whose sum is σ = 1876749778512. Its totient is φ = 594861094080.

The previous prime is 1220421041317. The next prime is 1220421041381. The reversal of 1220421041342 is 2431401240221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5722688 + ... + 5932115.

It is an arithmetic number, because the mean of its divisors is an integer number (117296861157).

Almost surely, 2^{1220421041342} is an apocalyptic number.

1220421041342 is a deficient number, since it is larger than the sum of its proper divisors (656328737170).

1220421041342 is a wasteful number, since it uses less digits than its factorization.

1220421041342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11656123.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1220421041342 its reverse (2431401240221), we get a palindrome (3651822281563).

The spelling of 1220421041342 in words is "one trillion, two hundred twenty billion, four hundred twenty-one million, forty-one thousand, three hundred forty-two".