117121622171205 has 24 divisors (see below), whose sum is σ = 192076673450976. Its totient is φ = 60941331848320.

The previous prime is 117121622171173. The next prime is 117121622171249. The reversal of 117121622171205 is 502171226121711.

It is not a de Polignac number, because 117121622171205 - 2⁵ = 117121622171173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2322434079 + ... + 2322484508.

It is an arithmetic number, because the mean of its divisors is an integer number (8003194727124).

Almost surely, 2^{117121622171205} is an apocalyptic number.

117121622171205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117121622171205 is a deficient number, since it is larger than the sum of its proper divisors (74955051279771).

117121622171205 is an equidigital number, since it uses as much as digits as its factorization.

117121622171205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644918677 (or 4644918636 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 39.

Adding to 117121622171205 its reverse (502171226121711), we get a palindrome (619292848292916).

The spelling of 117121622171205 in words is "one hundred seventeen trillion, one hundred twenty-one billion, six hundred twenty-two million, one hundred seventy-one thousand, two hundred five".