211420214004 has 12 divisors (see below), whose sum is σ = 493313832704. Its totient is φ = 70473404664.

The previous prime is 211420213981. The next prime is 211420214021. The reversal of 211420214004 is 400412024112.

It is a tau number, because it is divible by the number of its divisors (12).

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, 8809175572 + ... + 8809175595.

Almost surely, 2^211420214004 is an apocalyptic number.

It is an amenable number.

211420214004 is an abundant number, since it is smaller than the sum of its proper divisors (281893618700).

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

211420214004 is a wasteful number, since it uses less digits than its factorization.

211420214004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17618351174 (or 17618351172 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 211420214004 its reverse (400412024112), we get a palindrome (611832238116).

The spelling of 211420214004 in words is "two hundred eleven billion, four hundred twenty million, two hundred fourteen thousand, four".