211421023008 has 48 divisors (see below), whose sum is σ = 597670972416. Its totient is φ = 65052622080.

The previous prime is 211421023007. The next prime is 211421023027. The reversal of 211421023008 is 800320124112.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (211421023001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84702688 + ... + 84705183.

It is an arithmetic number, because the mean of its divisors is an integer number (12451478592).

Almost surely, 2^211421023008 is an apocalyptic number.

It is an amenable number.

211421023008 is an abundant number, since it is smaller than the sum of its proper divisors (386249949408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211421023008 is a wasteful number, since it uses less digits than its factorization.

211421023008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169407897 (or 169407889 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 211421023008 in words is "two hundred eleven billion, four hundred twenty-one million, twenty-three thousand, eight".