1212222211102 has 48 divisors (see below), whose sum is σ = 2120868444240. Its totient is φ = 518133783552.

The previous prime is 1212222211087. The next prime is 1212222211111. The reversal of 1212222211102 is 2011122222121.

It is a self number, because there is not a number n which added to its sum of digits gives 1212222211102.

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 23 ways as a sum of consecutive naturals, for example, 101274174 + ... + 101286142.

It is an arithmetic number, because the mean of its divisors is an integer number (44184759255).

Almost surely, 2^{1212222211102} is an apocalyptic number.

1212222211102 is a deficient number, since it is larger than the sum of its proper divisors (908646233138).

1212222211102 is a wasteful number, since it uses less digits than its factorization.

1212222211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14665 (or 14658 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1212222211102 its reverse (2011122222121), we get a palindrome (3223344433223).

The spelling of 1212222211102 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, two hundred eleven thousand, one hundred two".