12120000220 has 12 divisors (see below), whose sum is σ = 25452000504. Its totient is φ = 4848000080.

The previous prime is 12120000209. The next prime is 12120000241. The reversal of 12120000220 is 2200002121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12120000197 and 12120000206.

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, 302999986 + ... + 303000025.

It is an arithmetic number, because the mean of its divisors is an integer number (2121000042).

Almost surely, 2^12120000220 is an apocalyptic number.

12120000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120000220 is an abundant number, since it is smaller than the sum of its proper divisors (13332000284).

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

12120000220 is a wasteful number, since it uses less digits than its factorization.

12120000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606000020 (or 606000018 counting only the distinct ones).

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

Adding to 12120000220 its reverse (2200002121), we get a palindrome (14320002341).

The spelling of 12120000220 in words is "twelve billion, one hundred twenty million, two hundred twenty", and thus it is an aban number.