201210223212 has 144 divisors (see below), whose sum is σ = 539844963840. Its totient is φ = 63012473856.

The previous prime is 201210223199. The next prime is 201210223223. The reversal of 201210223212 is 212322012102.

201210223212 is a `hidden beast` number, since 20 + 1 + 210 + 223 + 212 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55627228 + ... + 55630844.

It is an arithmetic number, because the mean of its divisors is an integer number (3748923360).

Almost surely, 2^201210223212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201210223212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269922481920).

201210223212 is an abundant number, since it is smaller than the sum of its proper divisors (338634740628).

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

201210223212 is a wasteful number, since it uses less digits than its factorization.

201210223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300 (or 4295 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 201210223212 its reverse (212322012102), we get a palindrome (413532235314).

The spelling of 201210223212 in words is "two hundred one billion, two hundred ten million, two hundred twenty-three thousand, two hundred twelve".