1221111233032 has 32 divisors (see below), whose sum is σ = 2298939521400. Its totient is φ = 608061620224.

The previous prime is 1221111233011. The next prime is 1221111233057. The reversal of 1221111233032 is 2303321111221.

It can be written as a sum of positive squares in 4 ways, for example, as 1197987164676 + 23124068356 = 1094526^2 + 152066^2 .

It is a super-2 number, since 2×1221111233032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221111232994 and 1221111233012.

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, 11032944 + ... + 11143072.

Almost surely, 2^{1221111233032} is an apocalyptic number.

It is an amenable number.

1221111233032 is a deficient number, since it is larger than the sum of its proper divisors (1077828288368).

1221111233032 is a wasteful number, since it uses less digits than its factorization.

1221111233032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115785 (or 115781 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1221111233032 its reverse (2303321111221), we get a palindrome (3524432344253).

The spelling of 1221111233032 in words is "one trillion, two hundred twenty-one billion, one hundred eleven million, two hundred thirty-three thousand, thirty-two".