230231212220 has 48 divisors (see below), whose sum is σ = 496103027616. Its totient is φ = 89696640000.

The previous prime is 230231212219. The next prime is 230231212259. The reversal of 230231212220 is 22212132032.

It is a happy number.

230231212220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×230231212220² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 230231212192 and 230231212201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259235 + ... + 726405.

It is an arithmetic number, because the mean of its divisors is an integer number (10335479742).

Almost surely, 2^230231212220 is an apocalyptic number.

230231212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230231212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248051513808).

230231212220 is an abundant number, since it is smaller than the sum of its proper divisors (265871815396).

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

230231212220 is a wasteful number, since it uses less digits than its factorization.

230231212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467822 (or 467820 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 230231212220 its reverse (22212132032), we get a palindrome (252443344252).

The spelling of 230231212220 in words is "two hundred thirty billion, two hundred thirty-one million, two hundred twelve thousand, two hundred twenty".