12103322312221 has 32 divisors (see below), whose sum is σ = 14760582117120. Its totient is φ = 9687748801536.

The previous prime is 12103322312183. The next prime is 12103322312231. The reversal of 12103322312221 is 12221322330121.

It is a cyclic number.

It is not a de Polignac number, because 12103322312221 - 2¹⁵ = 12103322279453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103322312231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26453815 + ... + 26907451.

It is an arithmetic number, because the mean of its divisors is an integer number (461268191160).

Almost surely, 2^{12103322312221} is an apocalyptic number.

It is an amenable number.

12103322312221 is a deficient number, since it is larger than the sum of its proper divisors (2657259804899).

12103322312221 is a wasteful number, since it uses less digits than its factorization.

12103322312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455413.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12103322312221 its reverse (12221322330121), we get a palindrome (24324644642342).

The spelling of 12103322312221 in words is "twelve trillion, one hundred three billion, three hundred twenty-two million, three hundred twelve thousand, two hundred twenty-one".