212105244086 has 32 divisors (see below), whose sum is σ = 330991315200. Its totient is φ = 101816709120.

The previous prime is 212105244073. The next prime is 212105244103. The reversal of 212105244086 is 680442501212.

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, 37597826 + ... + 37603466.

It is an arithmetic number, because the mean of its divisors is an integer number (10343478600).

Almost surely, 2^212105244086 is an apocalyptic number.

212105244086 is a deficient number, since it is larger than the sum of its proper divisors (118886071114).

212105244086 is a wasteful number, since it uses less digits than its factorization.

212105244086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9224.

The product of its (nonzero) digits is 30720, while the sum is 35.

Adding to 212105244086 its reverse (680442501212), we get a palindrome (892547745298).

The spelling of 212105244086 in words is "two hundred twelve billion, one hundred five million, two hundred forty-four thousand, eighty-six".