211121200121198 has 32 divisors (see below), whose sum is σ = 344337655335840. Its totient is φ = 96739508027520.

The previous prime is 211121200121177. The next prime is 211121200121213. The reversal of 211121200121198 is 891121002121112.

It is a super-3 number, since 3×211121200121198³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433737473 + ... + 434223948.

It is an arithmetic number, because the mean of its divisors is an integer number (10760551729245).

Almost surely, 2^{211121200121198} is an apocalyptic number.

211121200121198 is a deficient number, since it is larger than the sum of its proper divisors (133216455214642).

211121200121198 is a wasteful number, since it uses less digits than its factorization.

211121200121198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867961652.

The product of its (nonzero) digits is 1152, while the sum is 32.

The spelling of 211121200121198 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred million, one hundred twenty-one thousand, one hundred ninety-eight".