36222231 has 4 divisors (see below), whose sum is σ = 48296312. Its totient is φ = 24148152.

The previous prime is 36222209. The next prime is 36222233. The reversal of 36222231 is 13222263.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 36222231 - 2⁷ = 36222103 is a prime.

It is a super-2 number, since 2×36222231² = 2624100037234722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36222198 and 36222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36222233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6037036 + ... + 6037041.

It is an arithmetic number, because the mean of its divisors is an integer number (12074078).

Almost surely, 2^36222231 is an apocalyptic number.

36222231 is a deficient number, since it is larger than the sum of its proper divisors (12074081).

36222231 is a wasteful number, since it uses less digits than its factorization.

36222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12074080.

The product of its digits is 864, while the sum is 21.

The square root of 36222231 is about 6018.4907576568. The cubic root of 36222231 is about 330.8707673290.

Adding to 36222231 its reverse (13222263), we get a palindrome (49444494).

The spelling of 36222231 in words is "thirty-six million, two hundred twenty-two thousand, two hundred thirty-one".