21200122132201 has 4 divisors (see below), whose sum is σ = 21206244030592. Its totient is φ = 21194000233812.

The previous prime is 21200122132199. The next prime is 21200122132237. The reversal of 21200122132201 is 10223122100212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21200122132201 - 2¹ = 21200122132199 is a prime.

It is a super-2 number, since 2×21200122132201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21200122132261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3060944001 + ... + 3060950926.

It is an arithmetic number, because the mean of its divisors is an integer number (5301561007648).

Almost surely, 2^{21200122132201} is an apocalyptic number.

It is an amenable number.

21200122132201 is a deficient number, since it is larger than the sum of its proper divisors (6121898391).

21200122132201 is an equidigital number, since it uses as much as digits as its factorization.

21200122132201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6121898390.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21200122132201 its reverse (10223122100212), we get a palindrome (31423244232413).

The spelling of 21200122132201 in words is "twenty-one trillion, two hundred billion, one hundred twenty-two million, one hundred thirty-two thousand, two hundred one".