211201111102212 has 864 divisors, whose sum is σ = 765244090275840. Its totient is φ = 49710510622080.

The previous prime is 211201111102183. The next prime is 211201111102271. The reversal of 211201111102212 is 212201111102112.

It is a happy number.

211201111102212 is a `hidden beast` number, since 211 + 20 + 111 + 110 + 2 + 212 = 666.

It is a super-2 number, since 2×211201111102212² (a number of 29 digits) contains 22 as substring.

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 287 ways as a sum of consecutive naturals, for example, 483115753 + ... + 483552719.

It is an arithmetic number, because the mean of its divisors is an integer number (885699178560).

Almost surely, 2^{211201111102212} is an apocalyptic number.

211201111102212 is a gapful number since it is divisible by the number (22) 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 211201111102212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382622045137920).

211201111102212 is an abundant number, since it is smaller than the sum of its proper divisors (554042979173628).

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

211201111102212 is a wasteful number, since it uses less digits than its factorization.

211201111102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437066 (or 437032 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 211201111102212 its reverse (212201111102112), we get a palindrome (423402222204324).

The spelling of 211201111102212 in words is "two hundred eleven trillion, two hundred one billion, one hundred eleven million, one hundred two thousand, two hundred twelve".