211220012012103 has 12 divisors (see below), whose sum is σ = 305117314382400. Its totient is φ = 140803306814016.

The previous prime is 211220012012081. The next prime is 211220012012123. The reversal of 211220012012103 is 301210210022112.

211220012012103 is a `hidden beast` number, since 211 + 220 + 0 + 1 + 20 + 1 + 210 + 3 = 666.

It is not a de Polignac number, because 211220012012103 - 2²¹ = 211220009914951 is a prime.

It is a super-2 number, since 2×211220012012103² (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 (211220012012123) 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, 836077303 + ... + 836329896.

It is an arithmetic number, because the mean of its divisors is an integer number (25426442865200).

Almost surely, 2^{211220012012103} is an apocalyptic number.

211220012012103 is a deficient number, since it is larger than the sum of its proper divisors (93897302370297).

211220012012103 is a wasteful number, since it uses less digits than its factorization.

211220012012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672421238 (or 1672421235 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 211220012012103 its reverse (301210210022112), we get a palindrome (512430222034215).

The spelling of 211220012012103 in words is "two hundred eleven trillion, two hundred twenty billion, twelve million, twelve thousand, one hundred three".