123013200221 has 16 divisors (see below), whose sum is σ = 131331657600. Its totient is φ = 114886937088.

The previous prime is 123013200209. The next prime is 123013200223. The reversal of 123013200221 is 122002310321.

It is a cyclic number.

It is not a de Polignac number, because 123013200221 - 2³⁰ = 121939458397 is a prime.

It is a super-2 number, since 2×123013200221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123013200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013200223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461936 + ... + 677798.

It is an arithmetic number, because the mean of its divisors is an integer number (8208228600).

Almost surely, 2^123013200221 is an apocalyptic number.

It is an amenable number.

123013200221 is a deficient number, since it is larger than the sum of its proper divisors (8318457379).

123013200221 is a wasteful number, since it uses less digits than its factorization.

123013200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216308.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123013200221 its reverse (122002310321), we get a palindrome (245015510542).

The spelling of 123013200221 in words is "one hundred twenty-three billion, thirteen million, two hundred thousand, two hundred twenty-one".