211112200120121 has 8 divisors (see below), whose sum is σ = 211559880015360. Its totient is φ = 210664778036752.

The previous prime is 211112200120051. The next prime is 211112200120139. The reversal of 211112200120121 is 121021002211112.

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 211112200120121 - 2¹⁴ = 211112200103737 is a prime.

It is a super-2 number, since 2×211112200120121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211112200120121.

It is not an unprimeable number, because it can be changed into a prime (211112200120021) 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 7 ways as a sum of consecutive naturals, for example, 62813465 + ... + 66088998.

It is an arithmetic number, because the mean of its divisors is an integer number (26444985001920).

Almost surely, 2^{211112200120121} is an apocalyptic number.

It is an amenable number.

211112200120121 is a deficient number, since it is larger than the sum of its proper divisors (447679895239).

211112200120121 is a wasteful number, since it uses less digits than its factorization.

211112200120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128905935.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211112200120121 its reverse (121021002211112), we get a palindrome (332133202331233).

The spelling of 211112200120121 in words is "two hundred eleven trillion, one hundred twelve billion, two hundred million, one hundred twenty thousand, one hundred twenty-one".