12102210223212 has 24 divisors (see below), whose sum is σ = 28241012803696. Its totient is φ = 4033709748288.

The previous prime is 12102210223171. The next prime is 12102210223217. The reversal of 12102210223212 is 21232201220121.

12102210223212 is digitally balanced in base 2, because in such base 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 (12102210223217) 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, 44900803 + ... + 45169530.

Almost surely, 2^{12102210223212} is an apocalyptic number.

12102210223212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12102210223212 is an abundant number, since it is smaller than the sum of its proper divisors (16138802580484).

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

12102210223212 is a wasteful number, since it uses less digits than its factorization.

12102210223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90081537 (or 90081535 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12102210223212 its reverse (21232201220121), we get a palindrome (33334411443333).

The spelling of 12102210223212 in words is "twelve trillion, one hundred two billion, two hundred ten million, two hundred twenty-three thousand, two hundred twelve".