12102121011102 has 32 divisors (see below), whose sum is σ = 24426550579200. Its totient is φ = 3997071525888.

The previous prime is 12102121011059. The next prime is 12102121011103. The reversal of 12102121011102 is 20111012120121.

It is a happy number.

It is a super-2 number, since 2×12102121011102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102121011103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9740452 + ... + 10912407.

It is an arithmetic number, because the mean of its divisors is an integer number (763329705600).

Almost surely, 2^{12102121011102} is an apocalyptic number.

12102121011102 is an abundant number, since it is smaller than the sum of its proper divisors (12324429568098).

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

12102121011102 is a wasteful number, since it uses less digits than its factorization.

12102121011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20653760.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12102121011102 its reverse (20111012120121), we get a palindrome (32213133131223).

The spelling of 12102121011102 in words is "twelve trillion, one hundred two billion, one hundred twenty-one million, eleven thousand, one hundred two".