211211212001103 has 12 divisors (see below), whose sum is σ = 318347334030960. Its totient is φ = 134685410551296.

The previous prime is 211211212001099. The next prime is 211211212001113. The reversal of 211211212001103 is 301100212112112.

It is a happy number.

211211212001103 is a `hidden beast` number, since 211 + 21 + 121 + 200 + 110 + 3 = 666.

It is not a de Polignac number, because 211211212001103 - 2² = 211211212001099 is a prime.

It is a super-2 number, since 2×211211212001103² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211211212001113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510172009458 + ... + 510172009871.

It is an arithmetic number, because the mean of its divisors is an integer number (26528944502580).

Almost surely, 2^{211211212001103} is an apocalyptic number.

211211212001103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211211212001103 is a deficient number, since it is larger than the sum of its proper divisors (107136122029857).

211211212001103 is a wasteful number, since it uses less digits than its factorization.

211211212001103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020344019358 (or 1020344019355 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 211211212001103 its reverse (301100212112112), we get a palindrome (512311424113215).

The spelling of 211211212001103 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twelve million, one thousand, one hundred three".