1220220320032 has 48 divisors (see below), whose sum is σ = 2767113861120. Its totient is φ = 518833824768.

The previous prime is 1220220320027. The next prime is 1220220320051. The reversal of 1220220320032 is 2300230220221.

It is a junction number, because it is equal to n+sod(n) for n = 1220220319991 and 1220220320009.

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 7 ways as a sum of consecutive naturals, for example, 21418057 + ... + 21474952.

It is an arithmetic number, because the mean of its divisors is an integer number (57648205440).

Almost surely, 2^{1220220320032} is an apocalyptic number.

It is an amenable number.

1220220320032 is an abundant number, since it is smaller than the sum of its proper divisors (1546893541088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220220320032 is a wasteful number, since it uses less digits than its factorization.

1220220320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42893153 (or 42893145 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 1220220320032 its reverse (2300230220221), we get a palindrome (3520450540253).

The spelling of 1220220320032 in words is "one trillion, two hundred twenty billion, two hundred twenty million, three hundred twenty thousand, thirty-two".