1111221030 has 32 divisors (see below), whose sum is σ = 2670918624. Its totient is φ = 295882496.

The previous prime is 1111221029. The next prime is 1111221077. The reversal of 1111221030 is 301221111.

It is a junction number, because it is equal to n+sod(n) for n = 1111220997 and 1111221015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7047 + ... + 47666.

It is an arithmetic number, because the mean of its divisors is an integer number (83466207).

Almost surely, 2^1111221030 is an apocalyptic number.

1111221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111221030 is an abundant number, since it is smaller than the sum of its proper divisors (1559697594).

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

1111221030 is a wasteful number, since it uses less digits than its factorization.

1111221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55400.

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

The square root of 1111221030 is about 33334.9820758914. The cubic root of 1111221030 is about 1035.7783218795.

Adding to 1111221030 its reverse (301221111), we get a palindrome (1412442141).

The spelling of 1111221030 in words is "one billion, one hundred eleven million, two hundred twenty-one thousand, thirty".