229701330981 has 56 divisors (see below), whose sum is σ = 351687308760. Its totient is φ = 149904608256.

The previous prime is 229701330953. The next prime is 229701331007. The reversal of 229701330981 is 189033107922.

229701330981 is a `hidden beast` number, since 229 + 7 + 0 + 1 + 330 + 98 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 62820910881 + 166880420100 = 250641^2 + 408510^2 .

It is not a de Polignac number, because 229701330981 - 2¹⁵ = 229701298213 is a prime.

It is a super-2 number, since 2×229701330981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229701330941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 17650605 + ... + 17663613.

Almost surely, 2^229701330981 is an apocalyptic number.

It is an amenable number.

229701330981 is a deficient number, since it is larger than the sum of its proper divisors (121985977779).

229701330981 is an equidigital number, since it uses as much as digits as its factorization.

229701330981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13537 (or 13522 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 229701330981 in words is "two hundred twenty-nine billion, seven hundred one million, three hundred thirty thousand, nine hundred eighty-one".