211154451112 has 32 divisors (see below), whose sum is σ = 441096347520. Its totient is φ = 93937181440.

The previous prime is 211154451103. The next prime is 211154451127.

211154451112 is nontrivially palindromic in base 10.

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 7 ways as a sum of consecutive naturals, for example, 25522273 + ... + 25530544.

It is an arithmetic number, because the mean of its divisors is an integer number (13784260860).

Almost surely, 2^211154451112 is an apocalyptic number.

211154451112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211154451112 is an abundant number, since it is smaller than the sum of its proper divisors (229941896408).

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

211154451112 is a wasteful number, since it uses less digits than its factorization.

211154451112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51052881 (or 51052877 counting only the distinct ones).

The product of its digits is 1600, while the sum is 28.

It can be divided in two parts, 211154 and 451112, that added together give a palindrome (662266).

The spelling of 211154451112 in words is "two hundred eleven billion, one hundred fifty-four million, four hundred fifty-one thousand, one hundred twelve".