10120221205 has 8 divisors (see below), whose sum is σ = 12563033400. Its totient is φ = 7816998336.

The previous prime is 10120221197. The next prime is 10120221229. The reversal of 10120221205 is 50212202101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 78978769 + 10041242436 = 8887^2 + 100206^2 .

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 10120221205 - 2³ = 10120221197 is a prime.

It is a congruent 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, 34897170 + ... + 34897459.

It is an arithmetic number, because the mean of its divisors is an integer number (1570379175).

Almost surely, 2^10120221205 is an apocalyptic number.

It is an amenable number.

10120221205 is a deficient number, since it is larger than the sum of its proper divisors (2442812195).

10120221205 is an equidigital number, since it uses as much as digits as its factorization.

10120221205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69794663.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 10120221205 its reverse (50212202101), we get a palindrome (60332423306).

The spelling of 10120221205 in words is "ten billion, one hundred twenty million, two hundred twenty-one thousand, two hundred five".