12121013102 has 24 divisors (see below), whose sum is σ = 21036477000. Its totient is φ = 5219573040.

The previous prime is 12121013011. The next prime is 12121013119. The reversal of 12121013102 is 20131012121.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1313477 + ... + 1322672.

It is an arithmetic number, because the mean of its divisors is an integer number (876519875).

Almost surely, 2^12121013102 is an apocalyptic number.

12121013102 is a deficient number, since it is larger than the sum of its proper divisors (8915463898).

12121013102 is a wasteful number, since it uses less digits than its factorization.

12121013102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636192 (or 2636181 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12121013102 its reverse (20131012121), we get a palindrome (32252025223).

The spelling of 12121013102 in words is "twelve billion, one hundred twenty-one million, thirteen thousand, one hundred two".