211421024012 has 24 divisors (see below), whose sum is σ = 405955044432. Its totient is φ = 95544968000.

The previous prime is 211421023997. The next prime is 211421024027. The reversal of 211421024012 is 210420124112.

211421024012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211421023997) and next prime (211421024027).

It is a super-2 number, since 2×211421024012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13879739 + ... + 13894962.

It is an arithmetic number, because the mean of its divisors is an integer number (16914793518).

Almost surely, 2^211421024012 is an apocalyptic number.

211421024012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211421024012 is a deficient number, since it is larger than the sum of its proper divisors (194534020420).

211421024012 is a wasteful number, since it uses less digits than its factorization.

211421024012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27774889 (or 27774887 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211421024012 its reverse (210420124112), we get a palindrome (421841148124).

The spelling of 211421024012 in words is "two hundred eleven billion, four hundred twenty-one million, twenty-four thousand, twelve".