212210220120111 has 12 divisors (see below), whose sum is σ = 306995285266488. Its totient is φ = 141256828498704.

The previous prime is 212210220120071. The next prime is 212210220120139. The reversal of 212210220120111 is 111021022012212.

212210220120111 is a `hidden beast` number, since 2 + 1 + 2 + 210 + 220 + 120 + 111 = 666.

It is not a de Polignac number, because 212210220120111 - 2¹⁴ = 212210220103727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210220120181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18054292245 + ... + 18054303998.

It is an arithmetic number, because the mean of its divisors is an integer number (25582940438874).

Almost surely, 2^{212210220120111} is an apocalyptic number.

212210220120111 is a deficient number, since it is larger than the sum of its proper divisors (94785065146377).

212210220120111 is a wasteful number, since it uses less digits than its factorization.

212210220120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36108596902 (or 36108596899 counting only the distinct ones).

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

Adding to 212210220120111 its reverse (111021022012212), we get a palindrome (323231242132323).

The spelling of 212210220120111 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty million, one hundred twenty thousand, one hundred eleven".