1221332022032 has 10 divisors (see below), whose sum is σ = 2366330792718. Its totient is φ = 610666011008.

The previous prime is 1221332022017. The next prime is 1221332022067. The reversal of 1221332022032 is 2302202331221.

It can be written as a sum of positive squares in only one way, i.e., 1216688417296 + 4643604736 = 1103036^2 + 68144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1221332021989 and 1221332022007.

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 as a sum of consecutive naturals, namely, 38166625673 + ... + 38166625704.

Almost surely, 2^{1221332022032} is an apocalyptic number.

It is an amenable number.

1221332022032 is a deficient number, since it is larger than the sum of its proper divisors (1144998770686).

1221332022032 is an equidigital number, since it uses as much as digits as its factorization.

1221332022032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76333251385 (or 76333251379 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1221332022032 its reverse (2302202331221), we get a palindrome (3523534353253).

The spelling of 1221332022032 in words is "one trillion, two hundred twenty-one billion, three hundred thirty-two million, twenty-two thousand, thirty-two".