1201221032320 has 32 divisors (see below), whose sum is σ = 2871669031920. Its totient is φ = 480488412672.

The previous prime is 1201221032281. The next prime is 1201221032387. The reversal of 1201221032320 is 232301221021.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 938453292 + ... + 938454571.

Almost surely, 2^{1201221032320} is an apocalyptic number.

1201221032320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201221032320 is an abundant number, since it is smaller than the sum of its proper divisors (1670447999600).

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

1201221032320 is an equidigital number, since it uses as much as digits as its factorization.

1201221032320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876907882 (or 1876907870 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1201221032320 its reverse (232301221021), we get a palindrome (1433522253341).

The spelling of 1201221032320 in words is "one trillion, two hundred one billion, two hundred twenty-one million, thirty-two thousand, three hundred twenty".