1220012212012 has 48 divisors (see below), whose sum is σ = 2467644752160. Its totient is φ = 521607859200.

The previous prime is 1220012211973. The next prime is 1220012212021. The reversal of 1220012212012 is 2102122100221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709414 + ... + 1715602.

It is an arithmetic number, because the mean of its divisors is an integer number (51409265670).

Almost surely, 2^{1220012212012} is an apocalyptic number.

It is an amenable number.

1220012212012 is an abundant number, since it is smaller than the sum of its proper divisors (1247632540148).

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

1220012212012 is a wasteful number, since it uses less digits than its factorization.

1220012212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007842 (or 1007840 counting only the distinct ones).

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

Adding to 1220012212012 its reverse (2102122100221), we get a palindrome (3322134312233).

The spelling of 1220012212012 in words is "one trillion, two hundred twenty billion, twelve million, two hundred twelve thousand, twelve".