1001232220120 has 32 divisors (see below), whose sum is σ = 2457569995920. Its totient is φ = 364084443520.

The previous prime is 1001232220097. The next prime is 1001232220123. The reversal of 1001232220120 is 210222321001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001232220094 and 1001232220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001232220123) 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 7 ways as a sum of consecutive naturals, for example, 1137763447 + ... + 1137764326.

Almost surely, 2^{1001232220120} is an apocalyptic number.

1001232220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001232220120 is an abundant number, since it is smaller than the sum of its proper divisors (1456337775800).

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

1001232220120 is a wasteful number, since it uses less digits than its factorization.

1001232220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275527795 (or 2275527791 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1001232220120 its reverse (210222321001), we get a palindrome (1211454541121).

The spelling of 1001232220120 in words is "one trillion, one billion, two hundred thirty-two million, two hundred twenty thousand, one hundred twenty".