1220443553102 has 16 divisors (see below), whose sum is σ = 1852766349840. Its totient is φ = 602855125632.

The previous prime is 1220443553099. The next prime is 1220443553113. The reversal of 1220443553102 is 2013553440221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10799024 + ... + 10911452.

It is an arithmetic number, because the mean of its divisors is an integer number (115797896865).

Almost surely, 2^{1220443553102} is an apocalyptic number.

1220443553102 is a deficient number, since it is larger than the sum of its proper divisors (632322796738).

1220443553102 is a wasteful number, since it uses less digits than its factorization.

1220443553102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177907.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 1220443553102 its reverse (2013553440221), we get a palindrome (3233996993323).

The spelling of 1220443553102 in words is "one trillion, two hundred twenty billion, four hundred forty-three million, five hundred fifty-three thousand, one hundred two".