211201111100012 has 12 divisors (see below), whose sum is σ = 403202121191016. Its totient is φ = 96000505045440.

The previous prime is 211201111100011. The next prime is 211201111100101. The reversal of 211201111100012 is 210001111102112.

It is a super-2 number, since 2×211201111100012² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211201111100012.

It is not an unprimeable number, because it can be changed into a prime (211201111100011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400012626093 + ... + 2400012626180.

It is an arithmetic number, because the mean of its divisors is an integer number (33600176765918).

Almost surely, 2^{211201111100012} is an apocalyptic number.

211201111100012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211201111100012 is a deficient number, since it is larger than the sum of its proper divisors (192001010091004).

211201111100012 is a wasteful number, since it uses less digits than its factorization.

211201111100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800025252288 (or 4800025252286 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211201111100012 its reverse (210001111102112), we get a palindrome (421202222202124).

The spelling of 211201111100012 in words is "two hundred eleven trillion, two hundred one billion, one hundred eleven million, one hundred thousand, twelve".