1222221110110 has 512 divisors, whose sum is σ = 3068253167616. Its totient is φ = 341231616000.

The previous prime is 1222221110053. The next prime is 1222221110111. The reversal of 1222221110110 is 110111222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222221110111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 11866224319 + ... + 11866224421.

It is an arithmetic number, because the mean of its divisors is an integer number (5992681968).

Almost surely, 2^{1222221110110} is an apocalyptic number.

1222221110110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222221110110 is an abundant number, since it is smaller than the sum of its proper divisors (1846032057506).

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

1222221110110 is a wasteful number, since it uses less digits than its factorization.

1222221110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222221110110 its reverse (110111222221), we get a palindrome (1332332332331).

It can be divided in two parts, 1222221 and 110110, that added together give a palindrome (1332331).

The spelling of 1222221110110 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred ten thousand, one hundred ten".