1011232221112 has 16 divisors (see below), whose sum is σ = 1898141724000. Its totient is φ = 505061094720.

The previous prime is 1011232221079. The next prime is 1011232221113. The reversal of 1011232221112 is 2111222321101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011232221112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011232221113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69369237 + ... + 69383812.

It is an arithmetic number, because the mean of its divisors is an integer number (118633857750).

Almost surely, 2^{1011232221112} is an apocalyptic number.

It is an amenable number.

1011232221112 is a deficient number, since it is larger than the sum of its proper divisors (886909502888).

1011232221112 is a wasteful number, since it uses less digits than its factorization.

1011232221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138753966 (or 138753962 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1011232221112 its reverse (2111222321101), we get a palindrome (3122454542213).

The spelling of 1011232221112 in words is "one trillion, eleven billion, two hundred thirty-two million, two hundred twenty-one thousand, one hundred twelve".