36220231 has 2 divisors, whose sum is σ = 36220232. Its totient is φ = 36220230.

The previous prime is 36220169. The next prime is 36220279. The reversal of 36220231 is 13202263.

It is a strong prime.

It is an emirp because it is prime and its reverse (13202263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36220231 - 2¹¹ = 36218183 is a prime.

It is a super-2 number, since 2×36220231² = 2623810267386722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36220199 and 36220208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36220291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18110115 + 18110116.

It is an arithmetic number, because the mean of its divisors is an integer number (18110116).

Almost surely, 2^36220231 is an apocalyptic number.

36220231 is a deficient number, since it is larger than the sum of its proper divisors (1).

36220231 is an equidigital number, since it uses as much as digits as its factorization.

36220231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 36220231 is about 6018.3246007506. The cubic root of 36220231 is about 330.8646775723.

Adding to 36220231 its reverse (13202263), we get a palindrome (49422494).

The spelling of 36220231 in words is "thirty-six million, two hundred twenty thousand, two hundred thirty-one".