12012121102 has 16 divisors (see below), whose sum is σ = 18058535424. Its totient is φ = 5992623000.

The previous prime is 12012121097. The next prime is 12012121109. The reversal of 12012121102 is 20112121021.

It is a super-2 number, since 2×12012121102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012121109) 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 7 ways as a sum of consecutive naturals, for example, 3419527 + ... + 3423037.

It is an arithmetic number, because the mean of its divisors is an integer number (1128658464).

Almost surely, 2^12012121102 is an apocalyptic number.

12012121102 is a deficient number, since it is larger than the sum of its proper divisors (6046414322).

12012121102 is a wasteful number, since it uses less digits than its factorization.

12012121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12012121102 its reverse (20112121021), we get a palindrome (32124242123).

The spelling of 12012121102 in words is "twelve billion, twelve million, one hundred twenty-one thousand, one hundred two".