107713520221 has 4 divisors (see below), whose sum is σ = 108426854944. Its totient is φ = 107000185500.

The previous prime is 107713520207. The next prime is 107713520237. The reversal of 107713520221 is 122025317701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 107713520221 - 2⁹ = 107713519709 is a prime.

It is a super-4 number, since 4×107713520221⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107713520821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356667135 + ... + 356667436.

It is an arithmetic number, because the mean of its divisors is an integer number (27106713736).

Almost surely, 2^107713520221 is an apocalyptic number.

It is an amenable number.

107713520221 is a deficient number, since it is larger than the sum of its proper divisors (713334723).

107713520221 is an equidigital number, since it uses as much as digits as its factorization.

107713520221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713334722.

The product of its (nonzero) digits is 5880, while the sum is 31.

Adding to 107713520221 its reverse (122025317701), we get a palindrome (229738837922).

The spelling of 107713520221 in words is "one hundred seven billion, seven hundred thirteen million, five hundred twenty thousand, two hundred twenty-one".