12055020 has 48 divisors (see below), whose sum is σ = 33911808. Its totient is φ = 3199680.

The previous prime is 12054997. The next prime is 12055027. The reversal of 12055020 is 2055021.

It is a super-3 number, since 3×12055020³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12055027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19557 + ... + 20163.

It is an arithmetic number, because the mean of its divisors is an integer number (706496).

Almost surely, 2^12055020 is an apocalyptic number.

12055020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12055020 is an abundant number, since it is smaller than the sum of its proper divisors (21856788).

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

12055020 is a wasteful number, since it uses less digits than its factorization.

12055020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 12055020 is about 3472.0339860088. The cubic root of 12055020 is about 229.2922160901.

Subtracting from 12055020 its reverse (2055021), we obtain a palindrome (9999999).

The spelling of 12055020 in words is "twelve million, fifty-five thousand, twenty".