1222221212102 has 32 divisors (see below), whose sum is σ = 2072746782720. Its totient is φ = 535417253280.

The previous prime is 1222221212063. The next prime is 1222221212119. The reversal of 1222221212102 is 2012121222221.

It is a congruent number.

It is an unprimeable number.

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, 1402118 + ... + 2100089.

It is an arithmetic number, because the mean of its divisors is an integer number (64773336960).

Almost surely, 2^{1222221212102} is an apocalyptic number.

1222221212102 is a deficient number, since it is larger than the sum of its proper divisors (850525570618).

1222221212102 is a wasteful number, since it uses less digits than its factorization.

1222221212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502796.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1222221212102 its reverse (2012121222221), we get a palindrome (3234342434323).

The spelling of 1222221212102 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred two".