220210013 has 4 divisors (see below), whose sum is σ = 220246620. Its totient is φ = 220173408.

The previous prime is 220209971. The next prime is 220210033. The reversal of 220210013 is 310012022.

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: 310012022 = 2 ⋅155006011.

It can be written as a sum of positive squares in 2 ways, for example, as 16662724 + 203547289 = 4082^2 + 14267^2 .

It is a cyclic number.

It is not a de Polignac number, because 220210013 - 2¹² = 220205917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220209976 and 220210003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220210033) 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, 6920 + ... + 22097.

It is an arithmetic number, because the mean of its divisors is an integer number (55061655).

Almost surely, 2^220210013 is an apocalyptic number.

It is an amenable number.

220210013 is a deficient number, since it is larger than the sum of its proper divisors (36607).

220210013 is an equidigital number, since it uses as much as digits as its factorization.

220210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36606.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 220210013 is about 14839.4748222435. The cubic root of 220210013 is about 603.8731048204.

Adding to 220210013 its reverse (310012022), we get a palindrome (530222035).

The spelling of 220210013 in words is "two hundred twenty million, two hundred ten thousand, thirteen".