1011221130 has 32 divisors (see below), whose sum is σ = 2486127168. Its totient is φ = 263081600.

The previous prime is 1011221129. The next prime is 1011221161. The reversal of 1011221130 is 311221101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409836 + ... + 412295.

It is an arithmetic number, because the mean of its divisors is an integer number (77691474).

Almost surely, 2^1011221130 is an apocalyptic number.

1011221130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011221130 is an abundant number, since it is smaller than the sum of its proper divisors (1474906038).

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

1011221130 is a wasteful number, since it uses less digits than its factorization.

1011221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822182.

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

The square root of 1011221130 is about 31799.7033005027. The cubic root of 1011221130 is about 1003.7264728177.

Adding to 1011221130 its reverse (311221101), we get a palindrome (1322442231).

The spelling of 1011221130 in words is "one billion, eleven million, two hundred twenty-one thousand, one hundred thirty".