11122121401 has 2 divisors, whose sum is σ = 11122121402. Its totient is φ = 11122121400.

The previous prime is 11122121377. The next prime is 11122121411. The reversal of 11122121401 is 10412122111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11104101376 + 18020025 = 105376^2 + 4245^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122121401 - 2⁵ = 11122121369 is a prime.

It is not a weakly prime, because it can be changed into another prime (11122121411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561060700 + 5561060701.

It is an arithmetic number, because the mean of its divisors is an integer number (5561060701).

Almost surely, 2^11122121401 is an apocalyptic number.

It is an amenable number.

11122121401 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122121401 is an equidigital number, since it uses as much as digits as its factorization.

11122121401 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11122121401 its reverse (10412122111), we get a palindrome (21534243512).

The spelling of 11122121401 in words is "eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, four hundred one".