211204114440 has 128 divisors (see below), whose sum is σ = 691329945600. Its totient is φ = 51192369920.

The previous prime is 211204114439. The next prime is 211204114447. The reversal of 211204114440 is 44411402112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 211204114440.

It is not an unprimeable number, because it can be changed into a prime (211204114447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11632009 + ... + 11650151.

It is an arithmetic number, because the mean of its divisors is an integer number (5401015200).

Almost surely, 2^211204114440 is an apocalyptic number.

211204114440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211204114440 is an abundant number, since it is smaller than the sum of its proper divisors (480125831160).

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

211204114440 is a wasteful number, since it uses less digits than its factorization.

211204114440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26987 (or 26983 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211204114440 its reverse (44411402112), we get a palindrome (255615516552).

The spelling of 211204114440 in words is "two hundred eleven billion, two hundred four million, one hundred fourteen thousand, four hundred forty".