1011221030 has 32 divisors (see below), whose sum is σ = 1939145184. Its totient is φ = 378349056.

The previous prime is 1011221011. The next prime is 1011221033. The reversal of 1011221030 is 301221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011221033) by changing a digit.

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, 9464 + ... + 45956.

It is an arithmetic number, because the mean of its divisors is an integer number (60598287).

Almost surely, 2^1011221030 is an apocalyptic number.

1011221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011221030 is a deficient number, since it is larger than the sum of its proper divisors (927924154).

1011221030 is a wasteful number, since it uses less digits than its factorization.

1011221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36680.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1011221030 is about 31799.7017281609. The cubic root of 1011221030 is about 1003.7264397314.

Adding to 1011221030 its reverse (301221101), we get a palindrome (1312442131).

The spelling of 1011221030 in words is "one billion, eleven million, two hundred twenty-one thousand, thirty".