220842012 has 12 divisors (see below), whose sum is σ = 515298056. Its totient is φ = 73614000.

The previous prime is 220842007. The next prime is 220842059. The reversal of 220842012 is 210248022.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220842012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9201739 + ... + 9201762.

Almost surely, 2^220842012 is an apocalyptic number.

It is an amenable number.

220842012 is an abundant number, since it is smaller than the sum of its proper divisors (294456044).

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

220842012 is a wasteful number, since it uses less digits than its factorization.

220842012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18403508 (or 18403506 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 220842012 is about 14860.7540858464. The cubic root of 220842012 is about 604.4502548892.

The spelling of 220842012 in words is "two hundred twenty million, eight hundred forty-two thousand, twelve".