1220131412042 has 8 divisors (see below), whose sum is σ = 1830201923556. Its totient is φ = 610064104192.

The previous prime is 1220131412033. The next prime is 1220131412189. The reversal of 1220131412042 is 2402141310221.

It can be written as a sum of positive squares in 2 ways, for example, as 1000282019881 + 219849392161 = 1000141^2 + 468881^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1220131411999 and 1220131412017.

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, 758378 + ... + 1736490.

Almost surely, 2^{1220131412042} is an apocalyptic number.

1220131412042 is a deficient number, since it is larger than the sum of its proper divisors (610070511514).

1220131412042 is an equidigital number, since it uses as much as digits as its factorization.

1220131412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601832.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1220131412042 its reverse (2402141310221), we get a palindrome (3622272722263).

The spelling of 1220131412042 in words is "one trillion, two hundred twenty billion, one hundred thirty-one million, four hundred twelve thousand, forty-two".