10720217202245 has 4 divisors (see below), whose sum is σ = 12864260642700. Its totient is φ = 8576173761792.

The previous prime is 10720217202221. The next prime is 10720217202251. The reversal of 10720217202245 is 54220271202701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5621802229156 + 5098414973089 = 2371034^2 + 2257967^2 .

It is a cyclic number.

It is not a de Polignac number, because 10720217202245 - 2²⁴ = 10720200425029 is a prime.

It is a super-2 number, since 2×10720217202245² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072021720220 + ... + 1072021720229.

It is an arithmetic number, because the mean of its divisors is an integer number (3216065160675).

Almost surely, 2^{10720217202245} is an apocalyptic number.

It is an amenable number.

10720217202245 is a deficient number, since it is larger than the sum of its proper divisors (2144043440455).

10720217202245 is an equidigital number, since it uses as much as digits as its factorization.

10720217202245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144043440454.

The product of its (nonzero) digits is 31360, while the sum is 35.

Adding to 10720217202245 its reverse (54220271202701), we get a palindrome (64940488404946).

The spelling of 10720217202245 in words is "ten trillion, seven hundred twenty billion, two hundred seventeen million, two hundred two thousand, two hundred forty-five".