230222330021 has 4 divisors (see below), whose sum is σ = 235837508844. Its totient is φ = 224607151200.

The previous prime is 230222329979. The next prime is 230222330047. The reversal of 230222330021 is 120033222032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 104303807521 + 125918522500 = 322961^2 + 354850^2 .

It is not a de Polignac number, because 230222330021 - 2³⁰ = 229148588197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230222329975 and 230222330002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230222330071) 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, 2807589350 + ... + 2807589431.

It is an arithmetic number, because the mean of its divisors is an integer number (58959377211).

Almost surely, 2^230222330021 is an apocalyptic number.

It is an amenable number.

230222330021 is a deficient number, since it is larger than the sum of its proper divisors (5615178823).

230222330021 is an equidigital number, since it uses as much as digits as its factorization.

230222330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615178822.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 230222330021 its reverse (120033222032), we get a palindrome (350255552053).

The spelling of 230222330021 in words is "two hundred thirty billion, two hundred twenty-two million, three hundred thirty thousand, twenty-one".