20123302222201 has 4 divisors (see below), whose sum is σ = 20123336635812. Its totient is φ = 20123267808592.

The previous prime is 20123302222189. The next prime is 20123302222211. The reversal of 20123302222201 is 10222220332102.

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 11332379649600 + 8790922572601 = 3366360^2 + 2964949^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123302222201 - 2²⁹ = 20122765351289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123302222211) 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, 16314250 + ... + 17504323.

It is an arithmetic number, because the mean of its divisors is an integer number (5030834158953).

Almost surely, 2^{20123302222201} is an apocalyptic number.

It is an amenable number.

20123302222201 is a deficient number, since it is larger than the sum of its proper divisors (34413611).

20123302222201 is an equidigital number, since it uses as much as digits as its factorization.

20123302222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34413610.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20123302222201 its reverse (10222220332102), we get a palindrome (30345522554303).

The spelling of 20123302222201 in words is "twenty trillion, one hundred twenty-three billion, three hundred two million, two hundred twenty-two thousand, two hundred one".