220120000001 has 4 divisors (see below), whose sum is σ = 240130909104. Its totient is φ = 200109090900.

The previous prime is 220119999989. The next prime is 220120000007. The reversal of 220120000001 is 100000021022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220120000001 - 2¹⁴ = 220119983617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220120000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10005454535 + ... + 10005454556.

It is an arithmetic number, because the mean of its divisors is an integer number (60032727276).

Almost surely, 2^220120000001 is an apocalyptic number.

It is an amenable number.

220120000001 is a deficient number, since it is larger than the sum of its proper divisors (20010909103).

220120000001 is a wasteful number, since it uses less digits than its factorization.

220120000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010909102.

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

Adding to 220120000001 its reverse (100000021022), we get a palindrome (320120021023).

The spelling of 220120000001 in words is "two hundred twenty billion, one hundred twenty million, one", and thus it is an aban number.