1222220110012 has 48 divisors (see below), whose sum is σ = 2346260468832. Its totient is φ = 552477818880.

The previous prime is 1222220109997. The next prime is 1222220110043. The reversal of 1222220110012 is 2100110222221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25086508 + ... + 25135180.

It is an arithmetic number, because the mean of its divisors is an integer number (48880426434).

Almost surely, 2^{1222220110012} is an apocalyptic number.

It is an amenable number.

1222220110012 is a deficient number, since it is larger than the sum of its proper divisors (1124040358820).

1222220110012 is a wasteful number, since it uses less digits than its factorization.

1222220110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51838 (or 51836 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222220110012 its reverse (2100110222221), we get a palindrome (3322330332233).

The spelling of 1222220110012 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, one hundred ten thousand, twelve".