212121112022224 has 40 divisors (see below), whose sum is σ = 411768558527328. Its totient is φ = 105858300812160.

The previous prime is 212121112022203. The next prime is 212121112022243. The reversal of 212121112022224 is 422220211121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78622959 + ... + 81276145.

Almost surely, 2^{212121112022224} is an apocalyptic number.

It is an amenable number.

212121112022224 is a deficient number, since it is larger than the sum of its proper divisors (199647446505104).

212121112022224 is a wasteful number, since it uses less digits than its factorization.

212121112022224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662723 (or 2662717 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 212121112022224 its reverse (422220211121212), we get a palindrome (634341323143436).

The spelling of 212121112022224 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, twenty-two thousand, two hundred twenty-four".