212021111103 has 16 divisors (see below), whose sum is σ = 283581849600. Its totient is φ = 140904111456.

The previous prime is 212021111083. The next prime is 212021111123. The reversal of 212021111103 is 301111120212.

It is an interprime number because it is at equal distance from previous prime (212021111083) and next prime (212021111123).

It is not a de Polignac number, because 212021111103 - 2¹⁰ = 212021110079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021111123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4127926 + ... + 4178972.

It is an arithmetic number, because the mean of its divisors is an integer number (17723865600).

Almost surely, 2^212021111103 is an apocalyptic number.

212021111103 is a deficient number, since it is larger than the sum of its proper divisors (71560738497).

212021111103 is a wasteful number, since it uses less digits than its factorization.

212021111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55366.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 212021111103 its reverse (301111120212), we get a palindrome (513132231315).

The spelling of 212021111103 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand, one hundred three".