211221211221103 has 8 divisors (see below), whose sum is σ = 218548995897600. Its totient is φ = 203896379520288.

The previous prime is 211221211221073. The next prime is 211221211221109. The reversal of 211221211221103 is 301122112122112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211221211221103 is a prime.

It is a super-2 number, since 2×211221211221103² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211221211221109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738098383 + ... + 738384496.

It is an arithmetic number, because the mean of its divisors is an integer number (27318624487200).

Almost surely, 2^{211221211221103} is an apocalyptic number.

211221211221103 is a deficient number, since it is larger than the sum of its proper divisors (7327784676497).

211221211221103 is a wasteful number, since it uses less digits than its factorization.

211221211221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476487841.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 211221211221103 its reverse (301122112122112), we get a palindrome (512343323343215).

The spelling of 211221211221103 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred eleven million, two hundred twenty-one thousand, one hundred three".