117216210 has 16 divisors (see below), whose sum is σ = 281318976. Its totient is φ = 31257648.

The previous prime is 117216191. The next prime is 117216223. The reversal of 117216210 is 12612711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953574 + ... + 1953633.

It is an arithmetic number, because the mean of its divisors is an integer number (17582436).

Almost surely, 2^117216210 is an apocalyptic number.

117216210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117216210 is an abundant number, since it is smaller than the sum of its proper divisors (164102766).

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

117216210 is a wasteful number, since it uses less digits than its factorization.

117216210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907217.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 117216210 is about 10826.6435241953. The cubic root of 117216210 is about 489.3984148519.

Adding to 117216210 its reverse (12612711), we get a palindrome (129828921).

The spelling of 117216210 in words is "one hundred seventeen million, two hundred sixteen thousand, two hundred ten".