220211020 has 12 divisors (see below), whose sum is σ = 462443184. Its totient is φ = 88084400.

The previous prime is 220211003. The next prime is 220211021. The reversal of 220211020 is 20112022.

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 = 220210988 and 220211006.

It is not an unprimeable number, because it can be changed into a prime (220211021) 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 3 ways as a sum of consecutive naturals, for example, 5505256 + ... + 5505295.

It is an arithmetic number, because the mean of its divisors is an integer number (38536932).

Almost surely, 2^220211020 is an apocalyptic number.

220211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220211020 is an abundant number, since it is smaller than the sum of its proper divisors (242232164).

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

220211020 is a wasteful number, since it uses less digits than its factorization.

220211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010560 (or 11010558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220211020 is about 14839.5087519769. The cubic root of 220211020 is about 603.8740253043.

Adding to 220211020 its reverse (20112022), we get a palindrome (240323042).

The spelling of 220211020 in words is "two hundred twenty million, two hundred eleven thousand, twenty".