211020219 has 6 divisors (see below), whose sum is σ = 304806996. Its totient is φ = 140680140.

The previous prime is 211020163. The next prime is 211020233. The reversal of 211020219 is 912020112.

It is not a de Polignac number, because 211020219 - 2⁷ = 211020091 is a prime.

It is a super-2 number, since 2×211020219² = 89059065653615922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211020259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11723337 + ... + 11723354.

It is an arithmetic number, because the mean of its divisors is an integer number (50801166).

Almost surely, 2^211020219 is an apocalyptic number.

211020219 is a deficient number, since it is larger than the sum of its proper divisors (93786777).

211020219 is a wasteful number, since it uses less digits than its factorization.

211020219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23446697 (or 23446694 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 211020219 is about 14526.5349963438. The cubic root of 211020219 is about 595.3531966020.

The spelling of 211020219 in words is "two hundred eleven million, twenty thousand, two hundred nineteen".