2221102122220 has 12 divisors (see below), whose sum is σ = 4664314456704. Its totient is φ = 888440848880.

The previous prime is 2221102122163. The next prime is 2221102122229. The reversal of 2221102122220 is 222212011222.

It is not an unprimeable number, because it can be changed into a prime (2221102122229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55527553036 + ... + 55527553075.

It is an arithmetic number, because the mean of its divisors is an integer number (388692871392).

Almost surely, 2^{2221102122220} is an apocalyptic number.

2221102122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221102122220 is an abundant number, since it is smaller than the sum of its proper divisors (2443212334484).

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

2221102122220 is a wasteful number, since it uses less digits than its factorization.

2221102122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111055106120 (or 111055106118 counting only the distinct ones).

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

Adding to 2221102122220 its reverse (222212011222), we get a palindrome (2443314133442).

The spelling of 2221102122220 in words is "two trillion, two hundred twenty-one billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty".