11222121123001 has 2 divisors, whose sum is σ = 11222121123002. Its totient is φ = 11222121123000.

The previous prime is 11222121122981. The next prime is 11222121123011. The reversal of 11222121123001 is 10032112122211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11219250735225 + 2870387776 = 3349515^2 + 53576^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222121123001 - 2²⁹ = 11221584252089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11222121123001.

It is not a weakly prime, because it can be changed into another prime (11222121123011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611060561500 + 5611060561501.

It is an arithmetic number, because the mean of its divisors is an integer number (5611060561501).

Almost surely, 2^{11222121123001} is an apocalyptic number.

It is an amenable number.

11222121123001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222121123001 is an equidigital number, since it uses as much as digits as its factorization.

11222121123001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11222121123001 its reverse (10032112122211), we get a palindrome (21254233245212).

The spelling of 11222121123001 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-three thousand, one".