220001121012012 has 24 divisors (see below), whose sum is σ = 513632161395696. Its totient is φ = 73291390951488.

The previous prime is 220001121011957. The next prime is 220001121012017. The reversal of 220001121012012 is 210210121100022.

It is a junction number, because it is equal to n+sod(n) for n = 220001121011982 and 220001121012000.

It is not an unprimeable number, because it can be changed into a prime (220001121012017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5289484903 + ... + 5289526494.

It is an arithmetic number, because the mean of its divisors is an integer number (21401340058154).

Almost surely, 2^{220001121012012} is an apocalyptic number.

It is an amenable number.

220001121012012 is an abundant number, since it is smaller than the sum of its proper divisors (293631040383684).

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

220001121012012 is a wasteful number, since it uses less digits than its factorization.

220001121012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10579013137 (or 10579013135 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220001121012012 its reverse (210210121100022), we get a palindrome (430211242112034).

The spelling of 220001121012012 in words is "two hundred twenty trillion, one billion, one hundred twenty-one million, twelve thousand, twelve".