1001220111132 has 48 divisors (see below), whose sum is σ = 2389609216512. Its totient is φ = 326129489920.

The previous prime is 1001220111131. The next prime is 1001220111149. The reversal of 1001220111132 is 2311110221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001220111131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023198 + ... + 1746245.

It is an arithmetic number, because the mean of its divisors is an integer number (49783525344).

Almost surely, 2^{1001220111132} is an apocalyptic number.

1001220111132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001220111132 is an abundant number, since it is smaller than the sum of its proper divisors (1388389105380).

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

1001220111132 is a wasteful number, since it uses less digits than its factorization.

1001220111132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770138 (or 2770136 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1001220111132 its reverse (2311110221001), we get a palindrome (3312330332133).

The spelling of 1001220111132 in words is "one trillion, one billion, two hundred twenty million, one hundred eleven thousand, one hundred thirty-two".