215042225029 has 2 divisors, whose sum is σ = 215042225030. Its totient is φ = 215042225028.

The previous prime is 215042225009. The next prime is 215042225071. The reversal of 215042225029 is 920522240512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213088408225 + 1953816804 = 461615^2 + 44202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215042225029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215042224985 and 215042225003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215042225009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107521112514 + 107521112515.

It is an arithmetic number, because the mean of its divisors is an integer number (107521112515).

Almost surely, 2^215042225029 is an apocalyptic number.

It is an amenable number.

215042225029 is a deficient number, since it is larger than the sum of its proper divisors (1).

215042225029 is an equidigital number, since it uses as much as digits as its factorization.

215042225029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 215042225029 in words is "two hundred fifteen billion, forty-two million, two hundred twenty-five thousand, twenty-nine".