2011033220 has 48 divisors (see below), whose sum is σ = 4874300928. Its totient is φ = 682665600.

The previous prime is 2011033187. The next prime is 2011033223. The reversal of 2011033220 is 223301102.

It is a happy number.

It is a super-2 number, since 2×2011033220² = 8088509223887136800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2011033195 and 2011033204.

It is not an unprimeable number, because it can be changed into a prime (2011033223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56972 + ... + 85251.

It is an arithmetic number, because the mean of its divisors is an integer number (101547936).

Almost surely, 2^2011033220 is an apocalyptic number.

2011033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011033220 is an abundant number, since it is smaller than the sum of its proper divisors (2863267708).

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

2011033220 is a wasteful number, since it uses less digits than its factorization.

2011033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142340 (or 142338 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2011033220 is about 44844.5450417328. The cubic root of 2011033220 is about 1262.2336335741.

Adding to 2011033220 its reverse (223301102), we get a palindrome (2234334322).

The spelling of 2011033220 in words is "two billion, eleven million, thirty-three thousand, two hundred twenty".