2221220221102 has 24 divisors (see below), whose sum is σ = 3539553859800. Its totient is φ = 1045219655040.

The previous prime is 2221220221091. The next prime is 2221220221139. The reversal of 2221220221102 is 2011220221222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221220221102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10821952 + ... + 11025292.

It is an arithmetic number, because the mean of its divisors is an integer number (147481410825).

Almost surely, 2^{2221220221102} is an apocalyptic number.

2221220221102 is a deficient number, since it is larger than the sum of its proper divisors (1318333638698).

2221220221102 is a wasteful number, since it uses less digits than its factorization.

2221220221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222276 (or 222259 counting only the distinct ones).

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

Adding to 2221220221102 its reverse (2011220221222), we get a palindrome (4232440442324).

The spelling of 2221220221102 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-one thousand, one hundred two".