4211220220 has 12 divisors (see below), whose sum is σ = 8843562504. Its totient is φ = 1684488080.

The previous prime is 4211220191. The next prime is 4211220253. The reversal of 4211220220 is 220221124.

It is a junction number, because it is equal to n+sod(n) for n = 4211220194 and 4211220203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105280486 + ... + 105280525.

It is an arithmetic number, because the mean of its divisors is an integer number (736963542).

Almost surely, 2^4211220220 is an apocalyptic number.

It is an amenable number.

4211220220 is an abundant number, since it is smaller than the sum of its proper divisors (4632342284).

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

4211220220 is a wasteful number, since it uses less digits than its factorization.

4211220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210561020 (or 210561018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4211220220 is about 64893.9151230684. The cubic root of 4211220220 is about 1614.8641164704.

Adding to 4211220220 its reverse (220221124), we get a palindrome (4431441344).

The spelling of 4211220220 in words is "four billion, two hundred eleven million, two hundred twenty thousand, two hundred twenty".