1221001130332 has 12 divisors (see below), whose sum is σ = 2186443884856. Its totient is φ = 596302877520.

The previous prime is 1221001130329. The next prime is 1221001130339. The reversal of 1221001130332 is 2330311001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221001130339) by changing a digit.

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, 3549421719 + ... + 3549422062.

Almost surely, 2^{1221001130332} is an apocalyptic number.

It is an amenable number.

1221001130332 is a deficient number, since it is larger than the sum of its proper divisors (965442754524).

1221001130332 is a wasteful number, since it uses less digits than its factorization.

1221001130332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098843828 (or 7098843826 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1221001130332 its reverse (2330311001221), we get a palindrome (3551312131553).

The spelling of 1221001130332 in words is "one trillion, two hundred twenty-one billion, one million, one hundred thirty thousand, three hundred thirty-two".