212120210222111 has 8 divisors (see below), whose sum is σ = 219481063080480. Its totient is φ = 204762448220512.

The previous prime is 212120210222051. The next prime is 212120210222113. The reversal of 212120210222111 is 111222012021212.

212120210222111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 212120210222111 - 2⁶ = 212120210222047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120210222113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772574555 + ... + 772849068.

It is an arithmetic number, because the mean of its divisors is an integer number (27435132885060).

Almost surely, 2^{212120210222111} is an apocalyptic number.

212120210222111 is a deficient number, since it is larger than the sum of its proper divisors (7360852858369).

212120210222111 is a wasteful number, since it uses less digits than its factorization.

212120210222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545428385.

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

Adding to 212120210222111 its reverse (111222012021212), we get a palindrome (323342222243323).

The spelling of 212120210222111 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred ten million, two hundred twenty-two thousand, one hundred eleven".