201223103223121 has 24 divisors (see below), whose sum is σ = 242266782681000. Its totient is φ = 166447387701504.

The previous prime is 201223103223071. The next prime is 201223103223127. The reversal of 201223103223121 is 121322301322102.

201223103223121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 87783988614721 + 113439114608400 = 9369311^2 + 10650780^2 .

It is not a de Polignac number, because 201223103223121 - 2²³ = 201223094834513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201223103223127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32012476 + ... + 37778893.

It is an arithmetic number, because the mean of its divisors is an integer number (10094449278375).

Almost surely, 2^{201223103223121} is an apocalyptic number.

It is an amenable number.

201223103223121 is a deficient number, since it is larger than the sum of its proper divisors (41043679457879).

201223103223121 is a wasteful number, since it uses less digits than its factorization.

201223103223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69793441 (or 69793434 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 201223103223121 its reverse (121322301322102), we get a palindrome (322545404545223).

The spelling of 201223103223121 in words is "two hundred one trillion, two hundred twenty-three billion, one hundred three million, two hundred twenty-three thousand, one hundred twenty-one".