220422012 has 12 divisors (see below), whose sum is σ = 514318056. Its totient is φ = 73474000.

The previous prime is 220422001. The next prime is 220422043. The reversal of 220422012 is 210224022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 220421982 and 220422000.

It is a congruent number.

It is an unprimeable number.

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, 9184239 + ... + 9184262.

It is an arithmetic number, because the mean of its divisors is an integer number (42859838).

Almost surely, 2^220422012 is an apocalyptic number.

It is an amenable number.

220422012 is an abundant number, since it is smaller than the sum of its proper divisors (293896044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220422012 is a wasteful number, since it uses less digits than its factorization.

220422012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18368508 (or 18368506 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 220422012 is about 14846.6161801267. The cubic root of 220422012 is about 604.0668281246.

Adding to 220422012 its reverse (210224022), we get a palindrome (430646034).

The spelling of 220422012 in words is "two hundred twenty million, four hundred twenty-two thousand, twelve".