212101202020194 has 48 divisors (see below), whose sum is σ = 482314915528992. Its totient is φ = 69848588603808.

The previous prime is 212101202020159. The next prime is 212101202020237. The reversal of 212101202020194 is 491020202101212.

212101202020194 is a `hidden beast` number, since 21 + 210 + 120 + 20 + 201 + 94 = 666.

It is a super-2 number, since 2×212101202020194² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2629009219 + ... + 2629089894.

It is an arithmetic number, because the mean of its divisors is an integer number (10048227406854).

Almost surely, 2^{212101202020194} is an apocalyptic number.

212101202020194 is an abundant number, since it is smaller than the sum of its proper divisors (270213713508798).

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

212101202020194 is an equidigital number, since it uses as much as digits as its factorization.

212101202020194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258099213 (or 5258099201 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 212101202020194 in words is "two hundred twelve trillion, one hundred one billion, two hundred two million, twenty thousand, one hundred ninety-four".