12102122221212 has 24 divisors (see below), whose sum is σ = 28245364333200. Its totient is φ = 4033029433216.

The previous prime is 12102122221139. The next prime is 12102122221247. The reversal of 12102122221212 is 21212222120121.

12102122221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12102122221212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126363537 + ... + 126459272.

It is an arithmetic number, because the mean of its divisors is an integer number (1176890180550).

Almost surely, 2^{12102122221212} is an apocalyptic number.

12102122221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102122221212 is an abundant number, since it is smaller than the sum of its proper divisors (16143242111988).

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

12102122221212 is a wasteful number, since it uses less digits than its factorization.

12102122221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252826805 (or 252826803 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12102122221212 its reverse (21212222120121), we get a palindrome (33314344341333).

The spelling of 12102122221212 in words is "twelve trillion, one hundred two billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".