2221210110220 has 12 divisors (see below), whose sum is σ = 4664541231504. Its totient is φ = 888484044080.

The previous prime is 2221210110211. The next prime is 2221210110253. The reversal of 2221210110220 is 220110121222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2221210110194 and 2221210110203.

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, 55530252736 + ... + 55530252775.

It is an arithmetic number, because the mean of its divisors is an integer number (388711769292).

Almost surely, 2^{2221210110220} is an apocalyptic number.

2221210110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221210110220 is an abundant number, since it is smaller than the sum of its proper divisors (2443331121284).

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

2221210110220 is a wasteful number, since it uses less digits than its factorization.

2221210110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111060505520 (or 111060505518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221210110220 its reverse (220110121222), we get a palindrome (2441320231442).

The spelling of 2221210110220 in words is "two trillion, two hundred twenty-one billion, two hundred ten million, one hundred ten thousand, two hundred twenty".