1111221330 has 64 divisors (see below), whose sum is σ = 2731857408. Its totient is φ = 289198080.

The previous prime is 1111221313. The next prime is 1111221341. The reversal of 1111221330 is 331221111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209815 + ... + 215045.

It is an arithmetic number, because the mean of its divisors is an integer number (42685272).

Almost surely, 2^1111221330 is an apocalyptic number.

1111221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111221330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365928704).

1111221330 is an abundant number, since it is smaller than the sum of its proper divisors (1620636078).

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

1111221330 is a wasteful number, since it uses less digits than its factorization.

1111221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1111221330 is about 33334.9865756685. The cubic root of 1111221330 is about 1035.7784150904.

Adding to 1111221330 its reverse (331221111), we get a palindrome (1442442441).

The spelling of 1111221330 in words is "one billion, one hundred eleven million, two hundred twenty-one thousand, three hundred thirty".