211421110012 has 12 divisors (see below), whose sum is σ = 422842220080. Its totient is φ = 90609047136.

The previous prime is 211421110003. The next prime is 211421110031. The reversal of 211421110012 is 210011124112.

211421110012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3775376937 + ... + 3775376992.

Almost surely, 2^211421110012 is an apocalyptic number.

It is an amenable number.

211421110012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211421110012 is a wasteful number, since it uses less digits than its factorization.

211421110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550753940 (or 7550753938 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211421110012 its reverse (210011124112), we get a palindrome (421432234124).

The spelling of 211421110012 in words is "two hundred eleven billion, four hundred twenty-one million, one hundred ten thousand, twelve".