113213202020221 has 2 divisors, whose sum is σ = 113213202020222. Its totient is φ = 113213202020220.

The previous prime is 113213202020213. The next prime is 113213202020251. The reversal of 113213202020221 is 122020202312311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57768588319225 + 55444613700996 = 7600565^2 + 7446114^2 .

It is a cyclic number.

It is not a de Polignac number, because 113213202020221 - 2³ = 113213202020213 is a prime.

It is a super-2 number, since 2×113213202020221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113213202020192 and 113213202020201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113213202020251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56606601010110 + 56606601010111.

It is an arithmetic number, because the mean of its divisors is an integer number (56606601010111).

Almost surely, 2^{113213202020221} is an apocalyptic number.

It is an amenable number.

113213202020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

113213202020221 is an equidigital number, since it uses as much as digits as its factorization.

113213202020221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 113213202020221 its reverse (122020202312311), we get a palindrome (235233404332532).

The spelling of 113213202020221 in words is "one hundred thirteen trillion, two hundred thirteen billion, two hundred two million, twenty thousand, two hundred twenty-one".