211670605201 has 4 divisors (see below), whose sum is σ = 230913387504. Its totient is φ = 192427822900.

The previous prime is 211670605183. The next prime is 211670605229. The reversal of 211670605201 is 102506076112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211670605201 - 2¹³ = 211670597009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211670605001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9621391135 + ... + 9621391156.

It is an arithmetic number, because the mean of its divisors is an integer number (57728346876).

Almost surely, 2^211670605201 is an apocalyptic number.

It is an amenable number.

211670605201 is a deficient number, since it is larger than the sum of its proper divisors (19242782303).

211670605201 is a wasteful number, since it uses less digits than its factorization.

211670605201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19242782302.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 211670605201 in words is "two hundred eleven billion, six hundred seventy million, six hundred five thousand, two hundred one".