120131212 has 24 divisors (see below), whose sum is σ = 213486336. Its totient is φ = 59140368.

The previous prime is 120131177. The next prime is 120131213. The reversal of 120131212 is 212131021.

It is a junction number, because it is equal to n+sod(n) for n = 120131192 and 120131201.

It is not an unprimeable number, because it can be changed into a prime (120131213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161313 + ... + 162055.

It is an arithmetic number, because the mean of its divisors is an integer number (8895264).

Almost surely, 2^120131212 is an apocalyptic number.

It is an amenable number.

120131212 is a deficient number, since it is larger than the sum of its proper divisors (93355124).

120131212 is a wasteful number, since it uses less digits than its factorization.

120131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1315 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 120131212 is about 10960.4384948778. The cubic root of 120131212 is about 493.4221252808.

Adding to 120131212 its reverse (212131021), we get a palindrome (332262233).

It can be divided in two parts, 12013 and 1212, that added together give a square (13225 = 115²).

The spelling of 120131212 in words is "one hundred twenty million, one hundred thirty-one thousand, two hundred twelve".