6201122129 has 2 divisors, whose sum is σ = 6201122130. Its totient is φ = 6201122128.

The previous prime is 6201122111. The next prime is 6201122173. The reversal of 6201122129 is 9212211026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5798517904 + 402604225 = 76148^2 + 20065^2 .

It is a cyclic number.

It is not a de Polignac number, because 6201122129 - 2¹⁶ = 6201056593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6201122098 and 6201122107.

It is not a weakly prime, because it can be changed into another prime (6201122429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3100561064 + 3100561065.

It is an arithmetic number, because the mean of its divisors is an integer number (3100561065).

Almost surely, 2^6201122129 is an apocalyptic number.

It is an amenable number.

6201122129 is a deficient number, since it is larger than the sum of its proper divisors (1).

6201122129 is an equidigital number, since it uses as much as digits as its factorization.

6201122129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 6201122129 is about 78747.2039440131. The cubic root of 6201122129 is about 1837.2013741125.

The spelling of 6201122129 in words is "six billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-nine".