12102121010 has 32 divisors (see below), whose sum is σ = 25004540160. Its totient is φ = 4131173952.

The previous prime is 12102120991. The next prime is 12102121049. The reversal of 12102121010 is 1012120121.

12102121010 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12102121010² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102120982 and 12102121000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361454 + ... + 393513.

It is an arithmetic number, because the mean of its divisors is an integer number (781391880).

Almost surely, 2^12102121010 is an apocalyptic number.

12102121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102121010 is an abundant number, since it is smaller than the sum of its proper divisors (12902419150).

12102121010 is a wasteful number, since it uses less digits than its factorization.

12102121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755210.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12102121010 its reverse (1012120121), we get a palindrome (13114241131).

The spelling of 12102121010 in words is "twelve billion, one hundred two million, one hundred twenty-one thousand, ten".