101712740221 has 8 divisors (see below), whose sum is σ = 102846088800. Its totient is φ = 100585671120.

The previous prime is 101712740159. The next prime is 101712740243. The reversal of 101712740221 is 122047217101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101712740221 - 2²⁵ = 101679185789 is a prime.

It is a super-2 number, since 2×101712740221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101712740221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101712740251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537291 + ... + 1602088.

It is an arithmetic number, because the mean of its divisors is an integer number (12855761100).

Almost surely, 2^101712740221 is an apocalyptic number.

It is an amenable number.

101712740221 is a deficient number, since it is larger than the sum of its proper divisors (1133348579).

101712740221 is a wasteful number, since it uses less digits than its factorization.

101712740221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139739.

The product of its (nonzero) digits is 1568, while the sum is 28.

Adding to 101712740221 its reverse (122047217101), we get a palindrome (223759957322).

The spelling of 101712740221 in words is "one hundred one billion, seven hundred twelve million, seven hundred forty thousand, two hundred twenty-one".