117211050 has 144 divisors (see below), whose sum is σ = 356664672. Its totient is φ = 28382400.

The previous prime is 117211049. The next prime is 117211051. The reversal of 117211050 is 50112711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117211049) and next prime (117211051).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117211051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 133212 + ... + 134088.

It is an arithmetic number, because the mean of its divisors is an integer number (2476838).

Almost surely, 2^117211050 is an apocalyptic number.

117211050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117211050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178332336).

117211050 is an abundant number, since it is smaller than the sum of its proper divisors (239453622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117211050 is a wasteful number, since it uses less digits than its factorization.

117211050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 117211050 is about 10826.4052205707. The cubic root of 117211050 is about 489.3912334422.

Adding to 117211050 its reverse (50112711), we get a palindrome (167323761).

The spelling of 117211050 in words is "one hundred seventeen million, two hundred eleven thousand, fifty".