12102420106 has 16 divisors (see below), whose sum is σ = 20749847616. Its totient is φ = 5186041056.

The previous prime is 12102420103. The next prime is 12102420107. The reversal of 12102420106 is 60102420121.

It is a super-2 number, since 2×12102420106² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12102420103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54145 + ... + 164731.

It is an arithmetic number, because the mean of its divisors is an integer number (1296865476).

Almost surely, 2^12102420106 is an apocalyptic number.

12102420106 is a deficient number, since it is larger than the sum of its proper divisors (8647427510).

12102420106 is a wasteful number, since it uses less digits than its factorization.

12102420106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118413.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12102420106 its reverse (60102420121), we get a palindrome (72204840227).

The spelling of 12102420106 in words is "twelve billion, one hundred two million, four hundred twenty thousand, one hundred six".