212101222000212 has 72 divisors (see below), whose sum is σ = 541459024022280. Its totient is φ = 69999639955200.

The previous prime is 212101222000193. The next prime is 212101222000229. The reversal of 212101222000212 is 212000222101212.

It is a happy number.

212101222000212 is a `hidden beast` number, since 21 + 210 + 1 + 2 + 220 + 0 + 0 + 212 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 160114757093316 + 51986464906896 = 12653646^2 + 7210164^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403729818 + ... + 404254830.

Almost surely, 2^{212101222000212} is an apocalyptic number.

It is an amenable number.

212101222000212 is an abundant number, since it is smaller than the sum of its proper divisors (329357802022068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212101222000212 is a wasteful number, since it uses less digits than its factorization.

212101222000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636233 (or 636228 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212101222000212 its reverse (212000222101212), we get a palindrome (424101444101424).

The spelling of 212101222000212 in words is "two hundred twelve trillion, one hundred one billion, two hundred twenty-two million, two hundred twelve", and thus it is an aban number.