201223112212 has 24 divisors (see below), whose sum is σ = 353666638080. Its totient is φ = 100175628000.

The previous prime is 201223112183. The next prime is 201223112213. The reversal of 201223112212 is 212211322102.

It is a self number, because there is not a number n which added to its sum of digits gives 201223112212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201223112213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9240337 + ... + 9262087.

It is an arithmetic number, because the mean of its divisors is an integer number (14736109920).

Almost surely, 2^201223112212 is an apocalyptic number.

It is an amenable number.

201223112212 is a deficient number, since it is larger than the sum of its proper divisors (152443525868).

201223112212 is a wasteful number, since it uses less digits than its factorization.

201223112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31671 (or 31669 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 201223112212 its reverse (212211322102), we get a palindrome (413434434314).

The spelling of 201223112212 in words is "two hundred one billion, two hundred twenty-three million, one hundred twelve thousand, two hundred twelve".