1001221101112 has 32 divisors (see below), whose sum is σ = 1880085841920. Its totient is φ = 499865355360.

The previous prime is 1001221101103. The next prime is 1001221101131. The reversal of 1001221101112 is 2111011221001.

It is a happy number.

It is a super-3 number, since 3×1001221101112³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001221101092 and 1001221101101.

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, 17663937 + ... + 17720527.

It is an arithmetic number, because the mean of its divisors is an integer number (58752682560).

Almost surely, 2^{1001221101112} is an apocalyptic number.

It is an amenable number.

1001221101112 is a deficient number, since it is larger than the sum of its proper divisors (878864740808).

1001221101112 is a wasteful number, since it uses less digits than its factorization.

1001221101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59851 (or 59847 counting only the distinct ones).

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

Adding to 1001221101112 its reverse (2111011221001), we get a palindrome (3112232322113).

The spelling of 1001221101112 in words is "one trillion, one billion, two hundred twenty-one million, one hundred one thousand, one hundred twelve".