12102214212 has 120 divisors (see below), whose sum is σ = 34573943712. Its totient is φ = 3660940800.

The previous prime is 12102214183. The next prime is 12102214259. The reversal of 12102214212 is 21241220121.

12102214212 is a `hidden beast` number, since 1 + 21 + 0 + 221 + 421 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2289012 + ... + 2294292.

Almost surely, 2^12102214212 is an apocalyptic number.

12102214212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12102214212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17286971856).

12102214212 is an abundant number, since it is smaller than the sum of its proper divisors (22471729500).

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

12102214212 is a wasteful number, since it uses less digits than its factorization.

12102214212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951 (or 5940 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12102214212 its reverse (21241220121), we get a palindrome (33343434333).

The spelling of 12102214212 in words is "twelve billion, one hundred two million, two hundred fourteen thousand, two hundred twelve".