212012211212210 has 8 divisors (see below), whose sum is σ = 381621980181996. Its totient is φ = 84804884484880.

The previous prime is 212012211212203. The next prime is 212012211212227. The reversal of 212012211212210 is 12212112210212.

It can be written as a sum of positive squares in 2 ways, for example, as 207887173033849 + 4125038178361 = 14418293^2 + 2031019^2 .

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

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, 10600610560601 + ... + 10600610560620.

Almost surely, 2^{212012211212210} is an apocalyptic number.

212012211212210 is a deficient number, since it is larger than the sum of its proper divisors (169609768969786).

212012211212210 is a wasteful number, since it uses less digits than its factorization.

212012211212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21201221121228.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212012211212210 its reverse (12212112210212), we get a palindrome (224224323422422).

The spelling of 212012211212210 in words is "two hundred twelve trillion, twelve billion, two hundred eleven million, two hundred twelve thousand, two hundred ten".