11120121210001 has 2 divisors, whose sum is σ = 11120121210002. Its totient is φ = 11120121210000.

The previous prime is 11120121209947. The next prime is 11120121210059. The reversal of 11120121210001 is 10001212102111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10877859385600 + 242261824401 = 3298160^2 + 492201^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120121210001 - 2⁹ = 11120121209489 is a prime.

It is a super-2 number, since 2×11120121210001² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11120121210901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560060605000 + 5560060605001.

It is an arithmetic number, because the mean of its divisors is an integer number (5560060605001).

Almost surely, 2^{11120121210001} is an apocalyptic number.

It is an amenable number.

11120121210001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120121210001 is an equidigital number, since it uses as much as digits as its factorization.

11120121210001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11120121210001 its reverse (10001212102111), we get a palindrome (21121333312112).

The spelling of 11120121210001 in words is "eleven trillion, one hundred twenty billion, one hundred twenty-one million, two hundred ten thousand, one".