211220314208 has 24 divisors (see below), whose sum is σ = 415855726272. Its totient is φ = 105606161536.

The previous prime is 211220314187. The next prime is 211220314259. The reversal of 211220314208 is 802413022112.

It is a super-2 number, since 2×211220314208² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 851666 + ... + 1071342.

It is an arithmetic number, because the mean of its divisors is an integer number (17327321928).

Almost surely, 2^211220314208 is an apocalyptic number.

It is an amenable number.

211220314208 is a deficient number, since it is larger than the sum of its proper divisors (204635412064).

211220314208 is a wasteful number, since it uses less digits than its factorization.

211220314208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249734 (or 249726 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 211220314208 in words is "two hundred eleven billion, two hundred twenty million, three hundred fourteen thousand, two hundred eight".