1222012020012 has 48 divisors (see below), whose sum is σ = 3258919141632. Its totient is φ = 349122674880.

The previous prime is 1222012019989. The next prime is 1222012020029. The reversal of 1222012020012 is 2100202102221.

It is a junction number, because it is equal to n+sod(n) for n = 1222012019973 and 1222012020000.

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, 776587 + ... + 1745597.

It is an arithmetic number, because the mean of its divisors is an integer number (67894148784).

Almost surely, 2^{1222012020012} is an apocalyptic number.

1222012020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222012020012 is an abundant number, since it is smaller than the sum of its proper divisors (2036907121620).

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

1222012020012 is a wasteful number, since it uses less digits than its factorization.

1222012020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984038 (or 984036 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1222012020012 its reverse (2100202102221), we get a palindrome (3322214122233).

The spelling of 1222012020012 in words is "one trillion, two hundred twenty-two billion, twelve million, twenty thousand, twelve".