211012404040144 has 120 divisors (see below), whose sum is σ = 476104439323968. Its totient is φ = 90335215111680.

The previous prime is 211012404040103. The next prime is 211012404040171. The reversal of 211012404040144 is 441040404210112.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4966495669 + ... + 4966538155.

Almost surely, 2^{211012404040144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211012404040144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238052219661984).

211012404040144 is an abundant number, since it is smaller than the sum of its proper divisors (265092035283824).

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

211012404040144 is a wasteful number, since it uses less digits than its factorization.

211012404040144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49273 (or 49260 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 211012404040144 its reverse (441040404210112), we get a palindrome (652052808250256).

The spelling of 211012404040144 in words is "two hundred eleven trillion, twelve billion, four hundred four million, forty thousand, one hundred forty-four".