2221220221120 has 56 divisors (see below), whose sum is σ = 5289820294608. Its totient is φ = 888397440000.

The previous prime is 2221220221091. The next prime is 2221220221139. The reversal of 2221220221120 is 211220221222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2831995 + ... + 3530245.

Almost surely, 2^{2221220221120} is an apocalyptic number.

2221220221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221220221120 is an abundant number, since it is smaller than the sum of its proper divisors (3068600073488).

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

2221220221120 is an equidigital number, since it uses as much as digits as its factorization.

2221220221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708209 (or 708199 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2221220221120 its reverse (211220221222), we get a palindrome (2432440442342).

The spelling of 2221220221120 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twenty".