220230221213 has 4 divisors (see below), whose sum is σ = 220234377468. Its totient is φ = 220226064960.

The previous prime is 220230221191. The next prime is 220230221273. The reversal of 220230221213 is 312122032022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84484398244 + 135745822969 = 290662^2 + 368437^2 .

It is a cyclic number.

It is not a de Polignac number, because 220230221213 - 2¹⁸ = 220229959069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220230221273) 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, 1997606 + ... + 2104967.

It is an arithmetic number, because the mean of its divisors is an integer number (55058594367).

Almost surely, 2^220230221213 is an apocalyptic number.

It is an amenable number.

220230221213 is a deficient number, since it is larger than the sum of its proper divisors (4156255).

220230221213 is an equidigital number, since it uses as much as digits as its factorization.

220230221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156254.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 220230221213 its reverse (312122032022), we get a palindrome (532352253235).

The spelling of 220230221213 in words is "two hundred twenty billion, two hundred thirty million, two hundred twenty-one thousand, two hundred thirteen".