1011000220 has 12 divisors (see below), whose sum is σ = 2123100504. Its totient is φ = 404400080.

The previous prime is 1011000187. The next prime is 1011000227. The reversal of 1011000220 is 220001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011000227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25274986 + ... + 25275025.

It is an arithmetic number, because the mean of its divisors is an integer number (176925042).

Almost surely, 2^1011000220 is an apocalyptic number.

1011000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011000220 is an abundant number, since it is smaller than the sum of its proper divisors (1112100284).

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

1011000220 is a wasteful number, since it uses less digits than its factorization.

1011000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50550020 (or 50550018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1011000220 is about 31796.2296506992. The cubic root of 1011000220 is about 1003.6533765855.

Adding to 1011000220 its reverse (220001101), we get a palindrome (1231001321).

The spelling of 1011000220 in words is "one billion, eleven million, two hundred twenty", and thus it is an aban number.