211421023006 has 16 divisors (see below), whose sum is σ = 319469472000. Its totient is φ = 104931467928.

The previous prime is 211421023001. The next prime is 211421023007. The reversal of 211421023006 is 600320124112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211421023001) 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, 1582395 + ... + 1710793.

It is an arithmetic number, because the mean of its divisors is an integer number (19966842000).

Almost surely, 2^211421023006 is an apocalyptic number.

211421023006 is a deficient number, since it is larger than the sum of its proper divisors (108048448994).

211421023006 is a wasteful number, since it uses less digits than its factorization.

211421023006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134463.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211421023006 its reverse (600320124112), we get a palindrome (811741147118).

The spelling of 211421023006 in words is "two hundred eleven billion, four hundred twenty-one million, twenty-three thousand, six".