212102020112 has 20 divisors (see below), whose sum is σ = 411002769660. Its totient is φ = 106036789248.

The previous prime is 212102020099. The next prime is 212102020189. The reversal of 212102020112 is 211020201212.

It can be written as a sum of positive squares in 2 ways, for example, as 53631149056 + 158470871056 = 231584^2 + 398084^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765233 + ... + 1004880.

It is an arithmetic number, because the mean of its divisors is an integer number (20550138483).

Almost surely, 2^212102020112 is an apocalyptic number.

It is an amenable number.

212102020112 is a deficient number, since it is larger than the sum of its proper divisors (198900749548).

212102020112 is a wasteful number, since it uses less digits than its factorization.

212102020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777610 (or 1777604 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212102020112 its reverse (211020201212), we get a palindrome (423122221324).

The spelling of 212102020112 in words is "two hundred twelve billion, one hundred two million, twenty thousand, one hundred twelve".