1221311232332 has 24 divisors (see below), whose sum is σ = 2300116533120. Its totient is φ = 565312815360.

The previous prime is 1221311232329. The next prime is 1221311232371. The reversal of 1221311232332 is 2332321131221.

It is a super-2 number, since 2×1221311232332² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147212732 + ... + 147221027.

It is an arithmetic number, because the mean of its divisors is an integer number (95838188880).

Almost surely, 2^{1221311232332} is an apocalyptic number.

It is an amenable number.

1221311232332 is a deficient number, since it is larger than the sum of its proper divisors (1078805300788).

1221311232332 is a wasteful number, since it uses less digits than its factorization.

1221311232332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294433841 (or 294433839 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 1221311232332 its reverse (2332321131221), we get a palindrome (3553632363553).

The spelling of 1221311232332 in words is "one trillion, two hundred twenty-one billion, three hundred eleven million, two hundred thirty-two thousand, three hundred thirty-two".