1011221120112 has 40 divisors (see below), whose sum is σ = 2985509974656. Its totient is φ = 288920319936.

The previous prime is 1011221120033. The next prime is 1011221120137. The reversal of 1011221120112 is 2110211221101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011221120091 and 1011221120100.

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, 1504792998 + ... + 1504793669.

Almost surely, 2^{1011221120112} is an apocalyptic number.

1011221120112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011221120112 is an abundant number, since it is smaller than the sum of its proper divisors (1974288854544).

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

1011221120112 is a wasteful number, since it uses less digits than its factorization.

1011221120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009586685 (or 3009586679 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1011221120112 its reverse (2110211221101), we get a palindrome (3121432341213).

The spelling of 1011221120112 in words is "one trillion, eleven billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twelve".