201210111212 has 48 divisors (see below), whose sum is σ = 398950755840. Its totient is φ = 87995976000.

The previous prime is 201210111209. The next prime is 201210111217. The reversal of 201210111212 is 212111012102.

It is not an unprimeable number, because it can be changed into a prime (201210111217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702539 + ... + 946562.

It is an arithmetic number, because the mean of its divisors is an integer number (8311474080).

Almost surely, 2^201210111212 is an apocalyptic number.

201210111212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201210111212 is a deficient number, since it is larger than the sum of its proper divisors (197740644628).

201210111212 is a wasteful number, since it uses less digits than its factorization.

201210111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649222 (or 1649220 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201210111212 its reverse (212111012102), we get a palindrome (413321123314).

The spelling of 201210111212 in words is "two hundred one billion, two hundred ten million, one hundred eleven thousand, two hundred twelve".