1031221011132 has 72 divisors (see below), whose sum is σ = 2808237432000. Its totient is φ = 317182953600.

The previous prime is 1031221011127. The next prime is 1031221011169. The reversal of 1031221011132 is 2311101221301.

1031221011132 is a `hidden beast` number, since 1 + 0 + 312 + 210 + 11 + 132 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 885757 + ... + 1687307.

Almost surely, 2^{1031221011132} is an apocalyptic number.

1031221011132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1031221011132 is an abundant number, since it is smaller than the sum of its proper divisors (1777016420868).

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

1031221011132 is a wasteful number, since it uses less digits than its factorization.

1031221011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804323 (or 804318 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1031221011132 its reverse (2311101221301), we get a palindrome (3342322232433).

The spelling of 1031221011132 in words is "one trillion, thirty-one billion, two hundred twenty-one million, eleven thousand, one hundred thirty-two".