233220105 has 12 divisors (see below), whose sum is σ = 404248260. Its totient is φ = 124384032.

The previous prime is 233220103. The next prime is 233220109. The reversal of 233220105 is 501022332.

233220105 = 2926² + 2927² + ... + 2952².

It can be written as a sum of positive squares in 2 ways, for example, as 117679104 + 115541001 = 10848^2 + 10749^2 .

It is not a de Polignac number, because 233220105 - 2¹ = 233220103 is a prime.

It is a super-2 number, since 2×233220105² = 108783234752422050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (233220103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2591290 + ... + 2591379.

It is an arithmetic number, because the mean of its divisors is an integer number (33687355).

Almost surely, 2^233220105 is an apocalyptic number.

It is an amenable number.

233220105 is a deficient number, since it is larger than the sum of its proper divisors (171028155).

233220105 is a wasteful number, since it uses less digits than its factorization.

233220105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5182680 (or 5182677 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 233220105 is about 15271.5455995783. The cubic root of 233220105 is about 615.5386516184.

Adding to 233220105 its reverse (501022332), we get a palindrome (734242437).

The spelling of 233220105 in words is "two hundred thirty-three million, two hundred twenty thousand, one hundred five".