2215212269 has 2 divisors, whose sum is σ = 2215212270. Its totient is φ = 2215212268.

The previous prime is 2215212257. The next prime is 2215212323. The reversal of 2215212269 is 9622125122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1801578025 + 413634244 = 42445^2 + 20338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215212269 - 2⁴ = 2215212253 is a prime.

It is a super-2 number, since 2×2215212269² = 9814330793456256722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215212169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107606134 + 1107606135.

It is an arithmetic number, because the mean of its divisors is an integer number (1107606135).

Almost surely, 2^2215212269 is an apocalyptic number.

It is an amenable number.

2215212269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215212269 is an equidigital number, since it uses as much as digits as its factorization.

2215212269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 2215212269 is about 47066.0415692673. The cubic root of 2215212269 is about 1303.5822830958.

The spelling of 2215212269 in words is "two billion, two hundred fifteen million, two hundred twelve thousand, two hundred sixty-nine".