12011970 has 32 divisors (see below), whose sum is σ = 28926720. Its totient is φ = 3192320.

The previous prime is 12011969. The next prime is 12011977. The reversal of 12011970 is 7911021.

12011970 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12011977) 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, 12466 + ... + 13394.

It is an arithmetic number, because the mean of its divisors is an integer number (903960).

Almost surely, 2^12011970 is an apocalyptic number.

12011970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011970 is an abundant number, since it is smaller than the sum of its proper divisors (16914750).

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

12011970 is a wasteful number, since it uses less digits than its factorization.

12011970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 12011970 is about 3465.8289051827. The cubic root of 12011970 is about 229.0189467108.

Adding to 12011970 its reverse (7911021), we get a palindrome (19922991).

It can be divided in two parts, 120 and 11970, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 12011970 in words is "twelve million, eleven thousand, nine hundred seventy".