11012012112121 has 2 divisors, whose sum is σ = 11012012112122. Its totient is φ = 11012012112120.

The previous prime is 11012012112113. The next prime is 11012012112151. The reversal of 11012012112121 is 12121121021011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8052456159225 + 2959555952896 = 2837685^2 + 1720336^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012012112121 - 2³ = 11012012112113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012012112095 and 11012012112104.

It is not a weakly prime, because it can be changed into another prime (11012012112151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506006056060 + 5506006056061.

It is an arithmetic number, because the mean of its divisors is an integer number (5506006056061).

Almost surely, 2^{11012012112121} is an apocalyptic number.

It is an amenable number.

11012012112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012012112121 is an equidigital number, since it uses as much as digits as its factorization.

11012012112121 is an evil number, because the sum of its binary digits is even.

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

Adding to 11012012112121 its reverse (12121121021011), we get a palindrome (23133133133132).

The spelling of 11012012112121 in words is "eleven trillion, twelve billion, twelve million, one hundred twelve thousand, one hundred twenty-one".