10200220123321 has 4 divisors (see below), whose sum is σ = 10200745142500. Its totient is φ = 10199695104144.

The previous prime is 10200220123309. The next prime is 10200220123333. The reversal of 10200220123321 is 12332102200201.

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

It is an interprime number because it is at equal distance from previous prime (10200220123309) and next prime (10200220123333).

It can be written as a sum of positive squares in 2 ways, for example, as 427468823721 + 9772751299600 = 653811^2 + 3126140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10200220123321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10200220124321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262480446 + ... + 262519303.

It is an arithmetic number, because the mean of its divisors is an integer number (2550186285625).

Almost surely, 2^{10200220123321} is an apocalyptic number.

It is an amenable number.

10200220123321 is a deficient number, since it is larger than the sum of its proper divisors (525019179).

10200220123321 is an equidigital number, since it uses as much as digits as its factorization.

10200220123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525019178.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10200220123321 its reverse (12332102200201), we get a palindrome (22532322323522).

The spelling of 10200220123321 in words is "ten trillion, two hundred billion, two hundred twenty million, one hundred twenty-three thousand, three hundred twenty-one".