230221111212 has 36 divisors (see below), whose sum is σ = 584994673536. Its totient is φ = 76338586080.

The previous prime is 230221111177. The next prime is 230221111217. The reversal of 230221111212 is 212111122032.

230221111212 is a `hidden beast` number, since 230 + 2 + 211 + 11 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (230221111217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16734043 + ... + 16747794.

Almost surely, 2^230221111212 is an apocalyptic number.

It is an amenable number.

230221111212 is an abundant number, since it is smaller than the sum of its proper divisors (354773562324).

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

230221111212 is a wasteful number, since it uses less digits than its factorization.

230221111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33482038 (or 33482033 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 230221111212 its reverse (212111122032), we get a palindrome (442332233244).

The spelling of 230221111212 in words is "two hundred thirty billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twelve".