1112112222021 has 24 divisors (see below), whose sum is σ = 1633822112000. Its totient is φ = 728826520032.

The previous prime is 1112112221953. The next prime is 1112112222043. The reversal of 1112112222021 is 1202222112111.

It is not a de Polignac number, because 1112112222021 - 2¹³ = 1112112213829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112112221985 and 1112112222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112112222821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3252361 + ... + 3577998.

Almost surely, 2^{1112112222021} is an apocalyptic number.

It is an amenable number.

1112112222021 is a deficient number, since it is larger than the sum of its proper divisors (521709889979).

1112112222021 is a wasteful number, since it uses less digits than its factorization.

1112112222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830673 (or 6830670 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1112112222021 its reverse (1202222112111), we get a palindrome (2314334334132).

The spelling of 1112112222021 in words is "one trillion, one hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, twenty-one".