1001220133332 has 48 divisors (see below), whose sum is σ = 2397536027712. Its totient is φ = 325004709120.

The previous prime is 1001220133219. The next prime is 1001220133339. The reversal of 1001220133332 is 2333310221001.

It is a junction number, because it is equal to n+sod(n) for n = 1001220133299 and 1001220133308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001220133339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1591023 + ... + 2129270.

It is an arithmetic number, because the mean of its divisors is an integer number (49948667244).

Almost surely, 2^{1001220133332} is an apocalyptic number.

1001220133332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001220133332 is an abundant number, since it is smaller than the sum of its proper divisors (1396315894380).

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

1001220133332 is a wasteful number, since it uses less digits than its factorization.

1001220133332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720888 (or 3720886 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1001220133332 its reverse (2333310221001), we get a palindrome (3334530354333).

The spelling of 1001220133332 in words is "one trillion, one billion, two hundred twenty million, one hundred thirty-three thousand, three hundred thirty-two".