1222221222102 has 32 divisors (see below), whose sum is σ = 2588465894400. Its totient is φ = 383407475328.

The previous prime is 1222221222067. The next prime is 1222221222109. The reversal of 1222221222102 is 2012221222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222221222109) 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 15 ways as a sum of consecutive naturals, for example, 613299 + ... + 1679457.

It is an arithmetic number, because the mean of its divisors is an integer number (80889559200).

Almost surely, 2^{1222221222102} is an apocalyptic number.

1222221222102 is an abundant number, since it is smaller than the sum of its proper divisors (1366244672298).

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

1222221222102 is a wasteful number, since it uses less digits than its factorization.

1222221222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077420.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1222221222102 its reverse (2012221222221), we get a palindrome (3234442444323).

The spelling of 1222221222102 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred two".