1112211020 has 12 divisors (see below), whose sum is σ = 2335643184. Its totient is φ = 444884400.

The previous prime is 1112211019. The next prime is 1112211031. The reversal of 1112211020 is 201122111.

It is a junction number, because it is equal to n+sod(n) for n = 1112210992 and 1112211010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27805256 + ... + 27805295.

It is an arithmetic number, because the mean of its divisors is an integer number (194636932).

Almost surely, 2^1112211020 is an apocalyptic number.

1112211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112211020 is an abundant number, since it is smaller than the sum of its proper divisors (1223432164).

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

1112211020 is a wasteful number, since it uses less digits than its factorization.

1112211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55610560 (or 55610558 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1112211020 is about 33349.8278856128. The cubic root of 1112211020 is about 1036.0858232047.

Adding to 1112211020 its reverse (201122111), we get a palindrome (1313333131).

The spelling of 1112211020 in words is "one billion, one hundred twelve million, two hundred eleven thousand, twenty".