12102111212202 has 48 divisors (see below), whose sum is σ = 28618339246848. Its totient is φ = 3665595003840.

The previous prime is 12102111212011. The next prime is 12102111212207. The reversal of 12102111212202 is 20221211120121.

12102111212202 is a `hidden beast` number, since 1 + 210 + 211 + 1 + 21 + 220 + 2 = 666.

It is a super-2 number, since 2×12102111212202² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (12102111212207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13836483 + ... + 14685110.

It is an arithmetic number, because the mean of its divisors is an integer number (596215400976).

Almost surely, 2^{12102111212202} is an apocalyptic number.

12102111212202 is an abundant number, since it is smaller than the sum of its proper divisors (16516228034646).

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

12102111212202 is a wasteful number, since it uses less digits than its factorization.

12102111212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28523755 (or 28523752 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12102111212202 its reverse (20221211120121), we get a palindrome (32323322332323).

The spelling of 12102111212202 in words is "twelve trillion, one hundred two billion, one hundred eleven million, two hundred twelve thousand, two hundred two".