20213123122201 has 8 divisors (see below), whose sum is σ = 21277147711680. Its totient is φ = 19149116133168.

The previous prime is 20213123122193. The next prime is 20213123122253. The reversal of 20213123122201 is 10222132131202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20213123122201 - 2³ = 20213123122193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213123122261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009461 + ... + 6668146.

It is an arithmetic number, because the mean of its divisors is an integer number (2659643463960).

Almost surely, 2^{20213123122201} is an apocalyptic number.

It is an amenable number.

20213123122201 is a deficient number, since it is larger than the sum of its proper divisors (1064024589479).

20213123122201 is a wasteful number, since it uses less digits than its factorization.

20213123122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8800223.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20213123122201 its reverse (10222132131202), we get a palindrome (30435255253403).

Subtracting from 20213123122201 its reverse (10222132131202), we obtain a palindrome (9990990990999).

The spelling of 20213123122201 in words is "twenty trillion, two hundred thirteen billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred one".