12212021022102 has 96 divisors (see below), whose sum is σ = 29005133249664. Its totient is φ = 3682622361600.

The previous prime is 12212021022077. The next prime is 12212021022109. The reversal of 12212021022102 is 20122012021221.

It is a happy number.

12212021022102 is a `hidden beast` number, since 1 + 221 + 20 + 210 + 2 + 210 + 2 = 666.

It is a super-2 number, since 2×12212021022102² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212021022109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 524176918 + ... + 524200214.

It is an arithmetic number, because the mean of its divisors is an integer number (302136804684).

Almost surely, 2^{12212021022102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212021022102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14502566624832).

12212021022102 is an abundant number, since it is smaller than the sum of its proper divisors (16793112227562).

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

12212021022102 is a wasteful number, since it uses less digits than its factorization.

12212021022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36074 (or 36071 counting only the distinct ones).

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

Adding to 12212021022102 its reverse (20122012021221), we get a palindrome (32334033043323).

The spelling of 12212021022102 in words is "twelve trillion, two hundred twelve billion, twenty-one million, twenty-two thousand, one hundred two".