229220901 has 64 divisors (see below), whose sum is σ = 432499200. Its totient is φ = 116702208.

The previous prime is 229220891. The next prime is 229220941. The reversal of 229220901 is 109022922.

It is not a de Polignac number, because 229220901 - 2⁷ = 229220773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229220941) 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 63 ways as a sum of consecutive naturals, for example, 69645 + ... + 72861.

It is an arithmetic number, because the mean of its divisors is an integer number (6757800).

Almost surely, 2^229220901 is an apocalyptic number.

229220901 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

229220901 is a deficient number, since it is larger than the sum of its proper divisors (203278299).

229220901 is a wasteful number, since it uses less digits than its factorization.

229220901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 229220901 is about 15140.0429655929. The cubic root of 229220901 is about 611.9999759708. Note that the first 4 decimals are identical.

Adding to 229220901 its sum of digits (27), we get a cube (229220928 = 612³).

The spelling of 229220901 in words is "two hundred twenty-nine million, two hundred twenty thousand, nine hundred one".