215450021041 has 2 divisors, whose sum is σ = 215450021042. Its totient is φ = 215450021040.

The previous prime is 215450021011. The next prime is 215450021071. The reversal of 215450021041 is 140120054512.

It is a balanced prime because it is at equal distance from previous prime (215450021011) and next prime (215450021071).

It can be written as a sum of positive squares in only one way, i.e., 157612176016 + 57837845025 = 397004^2 + 240495^2 .

It is a cyclic number.

It is not a de Polignac number, because 215450021041 - 2⁵ = 215450021009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215450020997 and 215450021015.

It is not a weakly prime, because it can be changed into another prime (215450021011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107725010520 + 107725010521.

It is an arithmetic number, because the mean of its divisors is an integer number (107725010521).

Almost surely, 2^215450021041 is an apocalyptic number.

It is an amenable number.

215450021041 is a deficient number, since it is larger than the sum of its proper divisors (1).

215450021041 is an equidigital number, since it uses as much as digits as its factorization.

215450021041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 215450021041 its reverse (140120054512), we get a palindrome (355570075553).

The spelling of 215450021041 in words is "two hundred fifteen billion, four hundred fifty million, twenty-one thousand, forty-one".