1220552242444 has 24 divisors (see below), whose sum is σ = 2263008630960. Its totient is φ = 574022701056.

The previous prime is 1220552242361. The next prime is 1220552242493. The reversal of 1220552242444 is 4442422550221.

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, 5433237 + ... + 5653420.

It is an arithmetic number, because the mean of its divisors is an integer number (94292026290).

Almost surely, 2^{1220552242444} is an apocalyptic number.

It is an amenable number.

1220552242444 is a deficient number, since it is larger than the sum of its proper divisors (1042456388516).

1220552242444 is a wasteful number, since it uses less digits than its factorization.

1220552242444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088297 (or 11088295 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 1220552242444 its reverse (4442422550221), we get a palindrome (5662974792665).

The spelling of 1220552242444 in words is "one trillion, two hundred twenty billion, five hundred fifty-two million, two hundred forty-two thousand, four hundred forty-four".