2217121211208 has 32 divisors (see below), whose sum is σ = 5550620846400. Its totient is φ = 737998027968.

The previous prime is 2217121211183. The next prime is 2217121211213. The reversal of 2217121211208 is 8021121217122.

It is a super-3 number, since 3×2217121211208³ (a number of 38 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 65131116 + ... + 65165147.

It is an arithmetic number, because the mean of its divisors is an integer number (173456901450).

Almost surely, 2^{2217121211208} is an apocalyptic number.

It is an amenable number.

2217121211208 is an abundant number, since it is smaller than the sum of its proper divisors (3333499635192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2217121211208 is a wasteful number, since it uses less digits than its factorization.

2217121211208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130296981 (or 130296977 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 30.

The spelling of 2217121211208 in words is "two trillion, two hundred seventeen billion, one hundred twenty-one million, two hundred eleven thousand, two hundred eight".