210212220120111 has 24 divisors (see below), whose sum is σ = 332117491829760. Its totient is φ = 127065194197200.

The previous prime is 210212220120047. The next prime is 210212220120113. The reversal of 210212220120111 is 111021022212012.

210212220120111 is a `hidden beast` number, since 2 + 1 + 0 + 212 + 220 + 120 + 111 = 666.

It is not a de Polignac number, because 210212220120111 - 2⁶ = 210212220120047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212220120113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2801223375 + ... + 2801298416.

It is an arithmetic number, because the mean of its divisors is an integer number (13838228826240).

Almost surely, 2^{210212220120111} is an apocalyptic number.

210212220120111 is a deficient number, since it is larger than the sum of its proper divisors (121905271709649).

210212220120111 is a wasteful number, since it uses less digits than its factorization.

210212220120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602522187 (or 5602522184 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210212220120111 its reverse (111021022212012), we get a palindrome (321233242332123).

The spelling of 210212220120111 in words is "two hundred ten trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty thousand, one hundred eleven".