220001031001 has 4 divisors (see below), whose sum is σ = 220042853604. Its totient is φ = 219959208400.

The previous prime is 220001030999. The next prime is 220001031013. The reversal of 220001031001 is 100130100022.

220001031001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100130100022 = 2 ⋅50065050011.

It can be written as a sum of positive squares in 2 ways, for example, as 174035814976 + 45965216025 = 417176^2 + 214395^2 .

It is a cyclic number.

It is not a de Polignac number, because 220001031001 - 2¹ = 220001030999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220001031071) 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 3 ways as a sum of consecutive naturals, for example, 20903410 + ... + 20913931.

It is an arithmetic number, because the mean of its divisors is an integer number (55010713401).

Almost surely, 2^220001031001 is an apocalyptic number.

It is an amenable number.

220001031001 is a deficient number, since it is larger than the sum of its proper divisors (41822603).

220001031001 is an equidigital number, since it uses as much as digits as its factorization.

220001031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41822602.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 220001031001 its reverse (100130100022), we get a palindrome (320131131023).

The spelling of 220001031001 in words is "two hundred twenty billion, one million, thirty-one thousand, one".