117121171211 has 16 divisors (see below), whose sum is σ = 137354780160. Its totient is φ = 98723731680.

The previous prime is 117121171187. The next prime is 117121171283. The reversal of 117121171211 is 112171121711.

It is a cyclic number.

It is not a de Polignac number, because 117121171211 - 2¹⁸ = 117120909067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117121171411) 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, 5951756 + ... + 5971401.

It is an arithmetic number, because the mean of its divisors is an integer number (8584673760).

Almost surely, 2^117121171211 is an apocalyptic number.

117121171211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117121171211 is a deficient number, since it is larger than the sum of its proper divisors (20233608949).

117121171211 is a wasteful number, since it uses less digits than its factorization.

117121171211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11923234.

The product of its digits is 196, while the sum is 26.

Adding to 117121171211 its reverse (112171121711), we get a palindrome (229292292922).

The spelling of 117121171211 in words is "one hundred seventeen billion, one hundred twenty-one million, one hundred seventy-one thousand, two hundred eleven".