221102310222 has 48 divisors (see below), whose sum is σ = 481057978752. Its totient is φ = 73392926400.

The previous prime is 221102310203. The next prime is 221102310241. The reversal of 221102310222 is 222013201122.

221102310222 is a `hidden beast` number, since 2 + 211 + 0 + 231 + 0 + 222 = 666.

It is an interprime number because it is at equal distance from previous prime (221102310203) and next prime (221102310241).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221102310195 and 221102310204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9466723 + ... + 9490049.

It is an arithmetic number, because the mean of its divisors is an integer number (10022041224).

Almost surely, 2^221102310222 is an apocalyptic number.

221102310222 is an abundant number, since it is smaller than the sum of its proper divisors (259955668530).

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

221102310222 is a wasteful number, since it uses less digits than its factorization.

221102310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25513 (or 25510 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221102310222 its reverse (222013201122), we get a palindrome (443115511344).

It can be divided in two parts, 22110 and 2310222, that added together give a palindrome (2332332).

The spelling of 221102310222 in words is "two hundred twenty-one billion, one hundred two million, three hundred ten thousand, two hundred twenty-two".