12415102222121 has 4 divisors (see below), whose sum is σ = 13145402352852. Its totient is φ = 11684802091392.

The previous prime is 12415102222109. The next prime is 12415102222139. The reversal of 12415102222121 is 12122220151421.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10882609254400 + 1532492967721 = 3298880^2 + 1237939^2 .

It is a cyclic number.

It is not a de Polignac number, because 12415102222121 - 2¹⁰ = 12415102221097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12415102221121) 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, 365150065340 + ... + 365150065373.

It is an arithmetic number, because the mean of its divisors is an integer number (3286350588213).

Almost surely, 2^{12415102222121} is an apocalyptic number.

It is an amenable number.

12415102222121 is a deficient number, since it is larger than the sum of its proper divisors (730300130731).

12415102222121 is an equidigital number, since it uses as much as digits as its factorization.

12415102222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730300130730.

The product of its (nonzero) digits is 1280, while the sum is 26.

Adding to 12415102222121 its reverse (12122220151421), we get a palindrome (24537322373542).

The spelling of 12415102222121 in words is "twelve trillion, four hundred fifteen billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty-one".