220120012 has 24 divisors (see below), whose sum is σ = 466137504. Its totient is φ = 88787712.

The previous prime is 220120003. The next prime is 220120027. The reversal of 220120012 is 210021022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230743 + ... + 231694.

It is an arithmetic number, because the mean of its divisors is an integer number (19422396).

Almost surely, 2^220120012 is an apocalyptic number.

It is an amenable number.

220120012 is an abundant number, since it is smaller than the sum of its proper divisors (246017492).

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

220120012 is a wasteful number, since it uses less digits than its factorization.

220120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462465 (or 462463 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220120012 is about 14836.4420263081. The cubic root of 220120012 is about 603.7908248967.

Adding to 220120012 its reverse (210021022), we get a palindrome (430141034).

The spelling of 220120012 in words is "two hundred twenty million, one hundred twenty thousand, twelve".