201300122321221 has 16 divisors (see below), whose sum is σ = 250975656783360. Its totient is φ = 156854690855280.

The previous prime is 201300122321191. The next prime is 201300122321261. The reversal of 201300122321221 is 122123221003102.

It is not a de Polignac number, because 201300122321221 - 2²¹ = 201300120224069 is a prime.

It is a super-2 number, since 2×201300122321221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201300122321192 and 201300122321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201300122321261) 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, 16448451 + ... + 25945168.

It is an arithmetic number, because the mean of its divisors is an integer number (15685978548960).

Almost surely, 2^{201300122321221} is an apocalyptic number.

It is an amenable number.

201300122321221 is a deficient number, since it is larger than the sum of its proper divisors (49675534462139).

201300122321221 is a wasteful number, since it uses less digits than its factorization.

201300122321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42455304.

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

Adding to 201300122321221 its reverse (122123221003102), we get a palindrome (323423343324323).

The spelling of 201300122321221 in words is "two hundred one trillion, three hundred billion, one hundred twenty-two million, three hundred twenty-one thousand, two hundred twenty-one".