211200121120112 has 20 divisors (see below), whose sum is σ = 426991549221840. Its totient is φ = 101008753579008.

The previous prime is 211200121120099. The next prime is 211200121120169. The reversal of 211200121120112 is 211021121002112.

It is a super-2 number, since 2×211200121120112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 286956685937 + ... + 286956686672.

It is an arithmetic number, because the mean of its divisors is an integer number (21349577461092).

Almost surely, 2^{211200121120112} is an apocalyptic number.

It is an amenable number.

211200121120112 is an abundant number, since it is smaller than the sum of its proper divisors (215791428101728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211200121120112 is a wasteful number, since it uses less digits than its factorization.

211200121120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573913372640 (or 573913372634 counting only the distinct ones).

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

Adding to 211200121120112 its reverse (211021121002112), we get a palindrome (422221242122224).

The spelling of 211200121120112 in words is "two hundred eleven trillion, two hundred billion, one hundred twenty-one million, one hundred twenty thousand, one hundred twelve".