220422013 has 4 divisors (see below), whose sum is σ = 251910880. Its totient is φ = 188933148.

The previous prime is 220422001. The next prime is 220422043. The reversal of 220422013 is 310224022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310224022 = 2 ⋅155112011.

It is a cyclic number.

It is not a de Polignac number, because 220422013 - 2¹³ = 220413821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220422043) 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, 15744423 + ... + 15744436.

It is an arithmetic number, because the mean of its divisors is an integer number (62977720).

Almost surely, 2^220422013 is an apocalyptic number.

It is an amenable number.

220422013 is a deficient number, since it is larger than the sum of its proper divisors (31488867).

220422013 is an equidigital number, since it uses as much as digits as its factorization.

220422013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31488866.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220422013 is about 14846.6162138044. The cubic root of 220422013 is about 604.0668290381.

Adding to 220422013 its reverse (310224022), we get a palindrome (530646035).

The spelling of 220422013 in words is "two hundred twenty million, four hundred twenty-two thousand, thirteen".