212012121010 has 32 divisors (see below), whose sum is σ = 385178976000. Its totient is φ = 84016854912.

The previous prime is 212012120989. The next prime is 212012121019. The reversal of 212012121010 is 10121210212.

It is not an unprimeable number, because it can be changed into a prime (212012121019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528567 + ... + 838693.

It is an arithmetic number, because the mean of its divisors is an integer number (12036843000).

Almost surely, 2^212012121010 is an apocalyptic number.

212012121010 is a deficient number, since it is larger than the sum of its proper divisors (173166854990).

212012121010 is a wasteful number, since it uses less digits than its factorization.

212012121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310770.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212012121010 its reverse (10121210212), we get a palindrome (222133331222).

The spelling of 212012121010 in words is "two hundred twelve billion, twelve million, one hundred twenty-one thousand, ten".