211673121 has 16 divisors (see below), whose sum is σ = 308456640. Its totient is φ = 128049920.

The previous prime is 211673113. The next prime is 211673197. The reversal of 211673121 is 121376112.

It is a cyclic number.

It is not a de Polignac number, because 211673121 - 2³ = 211673113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211673091 and 211673100.

It is not an unprimeable number, because it can be changed into a prime (211673321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13141 + ... + 24413.

It is an arithmetic number, because the mean of its divisors is an integer number (19278540).

Almost surely, 2^211673121 is an apocalyptic number.

It is an amenable number.

211673121 is a deficient number, since it is larger than the sum of its proper divisors (96783519).

211673121 is a wasteful number, since it uses less digits than its factorization.

211673121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11856.

The product of its digits is 504, while the sum is 24.

The square root of 211673121 is about 14548.9903773423. The cubic root of 211673121 is about 595.9665771462.

The spelling of 211673121 in words is "two hundred eleven million, six hundred seventy-three thousand, one hundred twenty-one".