12101220107 has 4 divisors (see below), whose sum is σ = 12102544800. Its totient is φ = 12099895416.

The previous prime is 12101220091. The next prime is 12101220119. The reversal of 12101220107 is 70102210121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12101220107 - 2⁴ = 12101220091 is a prime.

It is a super-2 number, since 2×12101220107² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100220107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648548 + ... + 666945.

It is an arithmetic number, because the mean of its divisors is an integer number (3025636200).

Almost surely, 2^12101220107 is an apocalyptic number.

12101220107 is a deficient number, since it is larger than the sum of its proper divisors (1324693).

12101220107 is an equidigital number, since it uses as much as digits as its factorization.

12101220107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324692.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12101220107 its reverse (70102210121), we get a palindrome (82203430228).

The spelling of 12101220107 in words is "twelve billion, one hundred one million, two hundred twenty thousand, one hundred seven".