201721216100710 has 32 divisors (see below), whose sum is σ = 365699860710912. Its totient is φ = 80111791635840.

The previous prime is 201721216100689. The next prime is 201721216100771. The reversal of 201721216100710 is 17001612127102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89794374 + ... + 92013433.

It is an arithmetic number, because the mean of its divisors is an integer number (11428120647216).

Almost surely, 2^{201721216100710} is an apocalyptic number.

201721216100710 is a deficient number, since it is larger than the sum of its proper divisors (163978644610202).

201721216100710 is a wasteful number, since it uses less digits than its factorization.

201721216100710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181808608.

The product of its (nonzero) digits is 2352, while the sum is 31.

Adding to 201721216100710 its reverse (17001612127102), we get a palindrome (218722828227812).

The spelling of 201721216100710 in words is "two hundred one trillion, seven hundred twenty-one billion, two hundred sixteen million, one hundred thousand, seven hundred ten".