220001001012 has 72 divisors (see below), whose sum is σ = 601277957280. Its totient is φ = 67422888000.

The previous prime is 220001000971. The next prime is 220001001023. The reversal of 220001001012 is 210100100022.

220001001012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 220001000985 and 220001001003.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 818962 + ... + 1053897.

It is an arithmetic number, because the mean of its divisors is an integer number (8351082740).

Almost surely, 2^220001001012 is an apocalyptic number.

It is an amenable number.

220001001012 is an abundant number, since it is smaller than the sum of its proper divisors (381276956268).

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

220001001012 is a wasteful number, since it uses less digits than its factorization.

220001001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873133 (or 1873128 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 220001001012 its reverse (210100100022), we get a palindrome (430101101034).

The spelling of 220001001012 in words is "two hundred twenty billion, one million, one thousand, twelve".