13213101122121 has 16 divisors (see below), whose sum is σ = 17977876283520. Its totient is φ = 8629048596480.

The previous prime is 13213101122119. The next prime is 13213101122141. The reversal of 13213101122121 is 12122110131231.

It is not a de Polignac number, because 13213101122121 - 2¹ = 13213101122119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13213101122141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64719661 + ... + 64923498.

It is an arithmetic number, because the mean of its divisors is an integer number (1123617267720).

Almost surely, 2^{13213101122121} is an apocalyptic number.

It is an amenable number.

13213101122121 is a deficient number, since it is larger than the sum of its proper divisors (4764775161399).

13213101122121 is a wasteful number, since it uses less digits than its factorization.

13213101122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129643856.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 13213101122121 its reverse (12122110131231), we get a palindrome (25335211253352).

The spelling of 13213101122121 in words is "thirteen trillion, two hundred thirteen billion, one hundred one million, one hundred twenty-two thousand, one hundred twenty-one".