220001013 has 12 divisors (see below), whose sum is σ = 318141408. Its totient is φ = 146500200.

The previous prime is 220000997. The next prime is 220001027. The reversal of 220001013 is 310100022.

It is a happy number.

It is not a de Polignac number, because 220001013 - 2⁴ = 220000997 is a prime.

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 = 220000986 and 220001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220001113) 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 11 ways as a sum of consecutive naturals, for example, 5313 + ... + 21638.

It is an arithmetic number, because the mean of its divisors is an integer number (26511784).

Almost surely, 2^220001013 is an apocalyptic number.

It is an amenable number.

220001013 is a deficient number, since it is larger than the sum of its proper divisors (98140395).

220001013 is a wasteful number, since it uses less digits than its factorization.

220001013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27864 (or 27861 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 220001013 is about 14832.4311223751. The cubic root of 220001013 is about 603.6820002373.

Adding to 220001013 its reverse (310100022), we get a palindrome (530101035).

Subtracting 220001013 from its reverse (310100022), we obtain a palindrome (90099009).

The spelling of 220001013 in words is "two hundred twenty million, one thousand, thirteen".