211111100120010 has 32 divisors (see below), whose sum is σ = 506669780351232. Its totient is φ = 56295944469440.

The previous prime is 211111100120009. The next prime is 211111100120051. The reversal of 211111100120010 is 10021001111112.

It is a super-3 number, since 3×211111100120010³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16866306 + ... + 26583725.

It is an arithmetic number, because the mean of its divisors is an integer number (15833430635976).

Almost surely, 2^{211111100120010} is an apocalyptic number.

211111100120010 is an abundant number, since it is smaller than the sum of its proper divisors (295558680231222).

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

211111100120010 is a wasteful number, since it uses less digits than its factorization.

211111100120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43611998.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 211111100120010 its reverse (10021001111112), we get a palindrome (221132101231122).

The spelling of 211111100120010 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred million, one hundred twenty thousand, ten".