211104322040 has 96 divisors (see below), whose sum is σ = 500967331200. Its totient is φ = 79978087680.

The previous prime is 211104321959. The next prime is 211104322043. The reversal of 211104322040 is 40223401112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211104322043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2700626 + ... + 2777694.

It is an arithmetic number, because the mean of its divisors is an integer number (5218409700).

Almost surely, 2^211104322040 is an apocalyptic number.

211104322040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211104322040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250483665600).

211104322040 is an abundant number, since it is smaller than the sum of its proper divisors (289863009160).

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

211104322040 is a wasteful number, since it uses less digits than its factorization.

211104322040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77205 (or 77154 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 211104322040 its reverse (40223401112), we get a palindrome (251327723152).

The spelling of 211104322040 in words is "two hundred eleven billion, one hundred four million, three hundred twenty-two thousand, forty".