221040023230 has 96 divisors (see below), whose sum is σ = 448100608032. Its totient is φ = 78026791680.

The previous prime is 221040023177. The next prime is 221040023233. The reversal of 221040023230 is 32320040122.

It is a junction number, because it is equal to n+sod(n) for n = 221040023198 and 221040023207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221040023233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10358532 + ... + 10379848.

It is an arithmetic number, because the mean of its divisors is an integer number (4667714667).

Almost surely, 2^221040023230 is an apocalyptic number.

221040023230 is an abundant number, since it is smaller than the sum of its proper divisors (227060584802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221040023230 is a wasteful number, since it uses less digits than its factorization.

221040023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21482 (or 21451 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 221040023230 its reverse (32320040122), we get a palindrome (253360063352).

The spelling of 221040023230 in words is "two hundred twenty-one billion, forty million, twenty-three thousand, two hundred thirty".