220122013 has 4 divisors (see below), whose sum is σ = 220159648. Its totient is φ = 220084380.

The previous prime is 220121999. The next prime is 220122017. The reversal of 220122013 is 310221022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220122013 - 2²¹ = 218024861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220121984 and 220122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122017) 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 3 ways as a sum of consecutive naturals, for example, 7953 + ... + 22438.

It is an arithmetic number, because the mean of its divisors is an integer number (55039912).

Almost surely, 2^220122013 is an apocalyptic number.

It is an amenable number.

220122013 is a deficient number, since it is larger than the sum of its proper divisors (37635).

220122013 is an equidigital number, since it uses as much as digits as its factorization.

220122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37634.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 220122013 is about 14836.5094614603. The cubic root of 220122013 is about 603.7926544771.

Adding to 220122013 its reverse (310221022), we get a palindrome (530343035).

Subtracting 220122013 from its reverse (310221022), we obtain a palindrome (90099009).

It can be divided in two parts, 22012 and 2013, that added together give a square (24025 = 155²).

The spelling of 220122013 in words is "two hundred twenty million, one hundred twenty-two thousand, thirteen".