1001221110112 has 12 divisors (see below), whose sum is σ = 1971154060596. Its totient is φ = 500610555040.

The previous prime is 1001221110107. The next prime is 1001221110121. The reversal of 1001221110112 is 2110111221001.

It is a happy number.

It is a super-2 number, since 2×1001221110112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001221110092 and 1001221110101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15644079814 + ... + 15644079877.

It is an arithmetic number, because the mean of its divisors is an integer number (164262838383).

Almost surely, 2^{1001221110112} is an apocalyptic number.

It is an amenable number.

1001221110112 is a deficient number, since it is larger than the sum of its proper divisors (969932950484).

1001221110112 is an equidigital number, since it uses as much as digits as its factorization.

1001221110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31288159701 (or 31288159693 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1001221110112 its reverse (2110111221001), we get a palindrome (3111332331113).

The spelling of 1001221110112 in words is "one trillion, one billion, two hundred twenty-one million, one hundred ten thousand, one hundred twelve".