212122222013212 has 12 divisors (see below), whose sum is σ = 424244444026480. Its totient is φ = 90909523719936.

The previous prime is 212122222013203. The next prime is 212122222013227. The reversal of 212122222013212 is 212310222221212.

It is a happy number.

212122222013212 is an admirable number.

It is a congruent number.

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, 3787896821637 + ... + 3787896821692.

Almost surely, 2^{212122222013212} is an apocalyptic number.

It is an amenable number.

212122222013212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212122222013212 is a wasteful number, since it uses less digits than its factorization.

212122222013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575793643340 (or 7575793643338 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 212122222013212 its reverse (212310222221212), we get a palindrome (424432444234424).

The spelling of 212122222013212 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, thirteen thousand, two hundred twelve".