1220452452142 has 96 divisors (see below), whose sum is σ = 2308186782720. Its totient is φ = 473749161600.

The previous prime is 1220452452119. The next prime is 1220452452169. The reversal of 1220452452142 is 2412542540221.

It is a super-3 number, since 3×1220452452142³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220452452098 and 1220452452107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 782842359 + ... + 782843917.

It is an arithmetic number, because the mean of its divisors is an integer number (24043612320).

Almost surely, 2^{1220452452142} is an apocalyptic number.

1220452452142 is a deficient number, since it is larger than the sum of its proper divisors (1087734330578).

1220452452142 is a wasteful number, since it uses less digits than its factorization.

1220452452142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 1220452452142 its reverse (2412542540221), we get a palindrome (3632994992363).

The spelling of 1220452452142 in words is "one trillion, two hundred twenty billion, four hundred fifty-two million, four hundred fifty-two thousand, one hundred forty-two".