1011030220 has 12 divisors (see below), whose sum is σ = 2123163504. Its totient is φ = 404412080.

The previous prime is 1011030199. The next prime is 1011030227. The reversal of 1011030220 is 220301101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1011030197 and 1011030206.

It is not an unprimeable number, because it can be changed into a prime (1011030227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25275736 + ... + 25275775.

It is an arithmetic number, because the mean of its divisors is an integer number (176930292).

Almost surely, 2^1011030220 is an apocalyptic number.

1011030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011030220 is an abundant number, since it is smaller than the sum of its proper divisors (1112133284).

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

1011030220 is a wasteful number, since it uses less digits than its factorization.

1011030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50551520 (or 50551518 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1011030220 is about 31796.7014012460. The cubic root of 1011030220 is about 1003.6633038182.

Adding to 1011030220 its reverse (220301101), we get a palindrome (1231331321).

The spelling of 1011030220 in words is "one billion, eleven million, thirty thousand, two hundred twenty".