13121222201163 has 12 divisors (see below), whose sum is σ = 18955198990728. Its totient is φ = 8746409554560.

The previous prime is 13121222201137. The next prime is 13121222201233. The reversal of 13121222201163 is 36110222212131.

It is a happy number.

13121222201163 is a `hidden beast` number, since 1 + 312 + 12 + 2 + 220 + 116 + 3 = 666.

It is not a de Polignac number, because 13121222201163 - 2¹⁰ = 13121222200139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13121222201863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89248545 + ... + 89395442.

It is an arithmetic number, because the mean of its divisors is an integer number (1579599915894).

Almost surely, 2^{13121222201163} is an apocalyptic number.

13121222201163 is a deficient number, since it is larger than the sum of its proper divisors (5833976789565).

13121222201163 is a wasteful number, since it uses less digits than its factorization.

13121222201163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178652154 (or 178652151 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 13121222201163 its reverse (36110222212131), we get a palindrome (49231444413294).

The spelling of 13121222201163 in words is "thirteen trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, one hundred sixty-three".