2215250311 has 2 divisors, whose sum is σ = 2215250312. Its totient is φ = 2215250310.

The previous prime is 2215250309. The next prime is 2215250321. The reversal of 2215250311 is 1130525122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2215250311 - 2¹ = 2215250309 is a prime.

Together with 2215250309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215250321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107625155 + 1107625156.

It is an arithmetic number, because the mean of its divisors is an integer number (1107625156).

Almost surely, 2^2215250311 is an apocalyptic number.

2215250311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215250311 is an equidigital number, since it uses as much as digits as its factorization.

2215250311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2215250311 is about 47066.4457017948. The cubic root of 2215250311 is about 1303.5897452240.

Adding to 2215250311 its reverse (1130525122), we get a palindrome (3345775433).

The spelling of 2215250311 in words is "two billion, two hundred fifteen million, two hundred fifty thousand, three hundred eleven".