220213013 has 4 divisors (see below), whose sum is σ = 220498668. Its totient is φ = 219927360.

The previous prime is 220212977. The next prime is 220213043. The reversal of 220213013 is 310312022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310312022 = 2 ⋅155156011.

It can be written as a sum of positive squares in 2 ways, for example, as 46553329 + 173659684 = 6823^2 + 13178^2 .

It is a cyclic number.

It is not a de Polignac number, because 220213013 - 2⁸ = 220212757 is a prime.

It is a super-3 number, since 3×220213013³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220213043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141668 + ... + 143213.

It is an arithmetic number, because the mean of its divisors is an integer number (55124667).

Almost surely, 2^220213013 is an apocalyptic number.

It is an amenable number.

220213013 is a deficient number, since it is larger than the sum of its proper divisors (285655).

220213013 is an equidigital number, since it uses as much as digits as its factorization.

220213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285654.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 220213013 is about 14839.5759036436. The cubic root of 220213013 is about 603.8758470680.

Adding to 220213013 its reverse (310312022), we get a palindrome (530525035).

Subtracting 220213013 from its reverse (310312022), we obtain a palindrome (90099009).

The spelling of 220213013 in words is "two hundred twenty million, two hundred thirteen thousand, thirteen".