212201011101185 has 8 divisors (see below), whose sum is σ = 254641292770920. Its totient is φ = 169760755914624.

The previous prime is 212201011101181. The next prime is 212201011101187. The reversal of 212201011101185 is 581101110102212.

It can be written as a sum of positive squares in 4 ways, for example, as 105926437291249 + 106274573809936 = 10292057^2 + 10308956^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212201011101185 - 2² = 212201011101181 is a prime.

It is a super-2 number, since 2×212201011101185² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212201011101181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23298269 + ... + 31100021.

It is an arithmetic number, because the mean of its divisors is an integer number (31830161596365).

Almost surely, 2^{212201011101185} is an apocalyptic number.

It is an amenable number.

212201011101185 is a deficient number, since it is larger than the sum of its proper divisors (42440281669735).

212201011101185 is an equidigital number, since it uses as much as digits as its factorization.

212201011101185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13241587.

The product of its (nonzero) digits is 320, while the sum is 26.

Adding to 212201011101185 its reverse (581101110102212), we get a palindrome (793302121203397).

The spelling of 212201011101185 in words is "two hundred twelve trillion, two hundred one billion, eleven million, one hundred one thousand, one hundred eighty-five".