11212122002129 has 2 divisors, whose sum is σ = 11212122002130. Its totient is φ = 11212122002128.

The previous prime is 11212122002093. The next prime is 11212122002143. The reversal of 11212122002129 is 92120022121211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8228722530625 + 2983399471504 = 2868575^2 + 1727252^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212122002129 - 2²⁸ = 11211853566673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11212122002098 and 11212122002107.

It is not a weakly prime, because it can be changed into another prime (11212122002329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606061001064 + 5606061001065.

It is an arithmetic number, because the mean of its divisors is an integer number (5606061001065).

Almost surely, 2^{11212122002129} is an apocalyptic number.

It is an amenable number.

11212122002129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212122002129 is an equidigital number, since it uses as much as digits as its factorization.

11212122002129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 11212122002129 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, two thousand, one hundred twenty-nine".