11220122121001 has 2 divisors, whose sum is σ = 11220122121002. Its totient is φ = 11220122121000.

The previous prime is 11220122120899. The next prime is 11220122121011. The reversal of 11220122121001 is 10012122102211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11032893696400 + 187228424601 = 3321580^2 + 432699^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220122121001 - 2⁷ = 11220122120873 is a prime.

It is a super-2 number, since 2×11220122121001² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11220122121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610061060500 + 5610061060501.

It is an arithmetic number, because the mean of its divisors is an integer number (5610061060501).

Almost surely, 2^{11220122121001} is an apocalyptic number.

It is an amenable number.

11220122121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220122121001 is an equidigital number, since it uses as much as digits as its factorization.

11220122121001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11220122121001 its reverse (10012122102211), we get a palindrome (21232244223212).

The spelling of 11220122121001 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, one".