1220220102012 has 24 divisors (see below), whose sum is σ = 2924131056336. Its totient is φ = 395747059968.

The previous prime is 1220220101987. The next prime is 1220220102019. The reversal of 1220220102012 is 2102010220221.

It is a junction number, because it is equal to n+sod(n) for n = 1220220101982 and 1220220102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220220102019) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1374121293 + ... + 1374122180.

It is an arithmetic number, because the mean of its divisors is an integer number (121838794014).

Almost surely, 2^{1220220102012} is an apocalyptic number.

1220220102012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220220102012 is an abundant number, since it is smaller than the sum of its proper divisors (1703910954324).

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

1220220102012 is a wasteful number, since it uses less digits than its factorization.

1220220102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748243517 (or 2748243515 counting only the distinct ones).

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

Adding to 1220220102012 its reverse (2102010220221), we get a palindrome (3322230322233).

The spelling of 1220220102012 in words is "one trillion, two hundred twenty billion, two hundred twenty million, one hundred two thousand, twelve".