1112211021 has 8 divisors (see below), whose sum is σ = 1498236544. Its totient is φ = 733829760.

The previous prime is 1112211019. The next prime is 1112211031. The reversal of 1112211021 is 1201122111.

1112211021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1112211021 - 2¹ = 1112211019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112210988 and 1112211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112211031) 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, 1910725 + ... + 1911306.

It is an arithmetic number, because the mean of its divisors is an integer number (187279568).

Almost surely, 2^1112211021 is an apocalyptic number.

It is an amenable number.

1112211021 is a deficient number, since it is larger than the sum of its proper divisors (386025523).

1112211021 is an equidigital number, since it uses as much as digits as its factorization.

1112211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822131.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1112211021 is about 33349.8279006054. The cubic root of 1112211021 is about 1036.0858235152.

Adding to 1112211021 its reverse (1201122111), we get a palindrome (2313333132).

The spelling of 1112211021 in words is "one billion, one hundred twelve million, two hundred eleven thousand, twenty-one".