22112201002121 has 2 divisors, whose sum is σ = 22112201002122. Its totient is φ = 22112201002120.

The previous prime is 22112201002069. The next prime is 22112201002163. The reversal of 22112201002121 is 12120010221122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22111258512121 + 942490000 = 4702261^2 + 30700^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112201002121 - 2⁶ = 22112201002057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22112201002121.

It is not a weakly prime, because it can be changed into another prime (22112201002621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11056100501060 + 11056100501061.

It is an arithmetic number, because the mean of its divisors is an integer number (11056100501061).

Almost surely, 2^{22112201002121} is an apocalyptic number.

It is an amenable number.

22112201002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22112201002121 is an equidigital number, since it uses as much as digits as its factorization.

22112201002121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22112201002121 its reverse (12120010221122), we get a palindrome (34232211223243).

The spelling of 22112201002121 in words is "twenty-two trillion, one hundred twelve billion, two hundred one million, two thousand, one hundred twenty-one".