2221100000220 has 48 divisors (see below), whose sum is σ = 6433531040160. Its totient is φ = 571869424896.

The previous prime is 2221100000219. The next prime is 2221100000263. The reversal of 2221100000220 is 220000011222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2221100000196 and 2221100000205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638245387 + ... + 638248866.

It is an arithmetic number, because the mean of its divisors is an integer number (134031896670).

Almost surely, 2^{2221100000220} is an apocalyptic number.

2221100000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221100000220 is an abundant number, since it is smaller than the sum of its proper divisors (4212431039940).

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

2221100000220 is a wasteful number, since it uses less digits than its factorization.

2221100000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276494294 (or 1276494292 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2221100000220 its reverse (220000011222), we get a palindrome (2441100011442).

The spelling of 2221100000220 in words is "two trillion, two hundred twenty-one billion, one hundred million, two hundred twenty", and thus it is an aban number.