211014021 has 8 divisors (see below), whose sum is σ = 285551584. Its totient is φ = 138576240.

The previous prime is 211014017. The next prime is 211014049. The reversal of 211014021 is 120410112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211014021 - 2² = 211014017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211013988 and 211014006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211014061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524710 + ... + 525111.

It is an arithmetic number, because the mean of its divisors is an integer number (35693948).

Almost surely, 2^211014021 is an apocalyptic number.

It is an amenable number.

211014021 is a deficient number, since it is larger than the sum of its proper divisors (74537563).

211014021 is a wasteful number, since it uses less digits than its factorization.

211014021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049891.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 211014021 is about 14526.3216610400. The cubic root of 211014021 is about 595.3473677210.

Adding to 211014021 its reverse (120410112), we get a palindrome (331424133).

The spelling of 211014021 in words is "two hundred eleven million, fourteen thousand, twenty-one".