13101121213221 has 16 divisors (see below), whose sum is σ = 18809186990400. Its totient is φ = 8080984036608.

The previous prime is 13101121213183. The next prime is 13101121213241. The reversal of 13101121213221 is 12231212110131.

It is not a de Polignac number, because 13101121213221 - 2⁶ = 13101121213157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101121213241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2176986226 + ... + 2176992243.

It is an arithmetic number, because the mean of its divisors is an integer number (1175574186900).

Almost surely, 2^{13101121213221} is an apocalyptic number.

It is an amenable number.

13101121213221 is a deficient number, since it is larger than the sum of its proper divisors (5708065777179).

13101121213221 is a wasteful number, since it uses less digits than its factorization.

13101121213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353978548.

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

Adding to 13101121213221 its reverse (12231212110131), we get a palindrome (25332333323352).

The spelling of 13101121213221 in words is "thirteen trillion, one hundred one billion, one hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-one".