1001222120120 has 32 divisors (see below), whose sum is σ = 2254897386000. Its totient is φ = 400107049728.

The previous prime is 1001222120089. The next prime is 1001222120131. The reversal of 1001222120120 is 210212221001.

It is a junction number, because it is equal to n+sod(n) for n = 1001222120095 and 1001222120104.

It is a congruent number.

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, 11888714 + ... + 11972633.

Almost surely, 2^{1001222120120} is an apocalyptic number.

1001222120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001222120120 is an abundant number, since it is smaller than the sum of its proper divisors (1253675265880).

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

1001222120120 is a wasteful number, since it uses less digits than its factorization.

1001222120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23862407 (or 23862403 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1001222120120 its reverse (210212221001), we get a palindrome (1211434341121).

The spelling of 1001222120120 in words is "one trillion, one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty".