231020020222 has 8 divisors (see below), whose sum is σ = 347330331936. Its totient is φ = 115243242912.

The previous prime is 231020020219. The next prime is 231020020223. The reversal of 231020020222 is 222020020132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 231020020196 and 231020020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231020020223) 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, 133382518 + ... + 133384249.

It is an arithmetic number, because the mean of its divisors is an integer number (43416291492).

Almost surely, 2^231020020222 is an apocalyptic number.

231020020222 is a deficient number, since it is larger than the sum of its proper divisors (116310311714).

231020020222 is a wasteful number, since it uses less digits than its factorization.

231020020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266767202.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 231020020222 its reverse (222020020132), we get a palindrome (453040040354).

The spelling of 231020020222 in words is "two hundred thirty-one billion, twenty million, twenty thousand, two hundred twenty-two".