201210011221194 has 64 divisors (see below), whose sum is σ = 454030638929280. Its totient is φ = 66038542047360.

The previous prime is 201210011221181. The next prime is 201210011221231. The reversal of 201210011221194 is 491122110012102.

201210011221194 is a `hidden beast` number, since 201 + 210 + 0 + 11 + 221 + 19 + 4 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41163577 + ... + 45791484.

It is an arithmetic number, because the mean of its divisors is an integer number (7094228733270).

Almost surely, 2^{201210011221194} is an apocalyptic number.

201210011221194 is an abundant number, since it is smaller than the sum of its proper divisors (252820627708086).

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

201210011221194 is a wasteful number, since it uses less digits than its factorization.

201210011221194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86955732 (or 86955726 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

Adding to 201210011221194 its reverse (491122110012102), we get a palindrome (692332121233296).

The spelling of 201210011221194 in words is "two hundred one trillion, two hundred ten billion, eleven million, two hundred twenty-one thousand, one hundred ninety-four".