1220052244042 has 16 divisors (see below), whose sum is σ = 1849236427080. Its totient is φ = 603642083328.

The previous prime is 1220052244009. The next prime is 1220052244049. The reversal of 1220052244042 is 2404422500221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 677854175761 + 542198068281 = 823319^2 + 736341^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1220052244042.

It is not an unprimeable number, because it can be changed into a prime (1220052244049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747298 + ... + 1731634.

Almost surely, 2^{1220052244042} is an apocalyptic number.

1220052244042 is a deficient number, since it is larger than the sum of its proper divisors (629184183038).

1220052244042 is an equidigital number, since it uses as much as digits as its factorization.

1220052244042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990825.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 1220052244042 its reverse (2404422500221), we get a palindrome (3624474744263).

The spelling of 1220052244042 in words is "one trillion, two hundred twenty billion, fifty-two million, two hundred forty-four thousand, forty-two".