2150011217 has 2 divisors, whose sum is σ = 2150011218. Its totient is φ = 2150011216.

The previous prime is 2150011189. The next prime is 2150011229. The reversal of 2150011217 is 7121100512.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1429142416 + 720868801 = 37804^2 + 26849^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150011217 - 2¹² = 2150007121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2150011117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075005608 + 1075005609.

It is an arithmetic number, because the mean of its divisors is an integer number (1075005609).

Almost surely, 2^2150011217 is an apocalyptic number.

It is an amenable number.

2150011217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150011217 is an equidigital number, since it uses as much as digits as its factorization.

2150011217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 2150011217 is about 46368.2134333425. The cubic root of 2150011217 is about 1290.6651252229.

Adding to 2150011217 its reverse (7121100512), we get a palindrome (9271111729).

The spelling of 2150011217 in words is "two billion, one hundred fifty million, eleven thousand, two hundred seventeen".