1112213021 has 8 divisors (see below), whose sum is σ = 1121659680. Its totient is φ = 1102801392.

The previous prime is 1112212993. The next prime is 1112213129. The reversal of 1112213021 is 1203122111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112213021 - 2⁶ = 1112212957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112212987 and 1112213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112213521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57086 + ... + 74048.

It is an arithmetic number, because the mean of its divisors is an integer number (140207460).

Almost surely, 2^1112213021 is an apocalyptic number.

It is an amenable number.

1112213021 is a deficient number, since it is larger than the sum of its proper divisors (9446659).

1112213021 is a wasteful number, since it uses less digits than its factorization.

1112213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17515.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1112213021 is about 33349.8578857542. The cubic root of 1112213021 is about 1036.0864445516.

Adding to 1112213021 its reverse (1203122111), we get a palindrome (2315335132).

The spelling of 1112213021 in words is "one billion, one hundred twelve million, two hundred thirteen thousand, twenty-one".