211404443334 has 16 divisors (see below), whose sum is σ = 483210156288. Its totient is φ = 60401269512.

The previous prime is 211404443303. The next prime is 211404443413. The reversal of 211404443334 is 433344404112.

It is a super-2 number, since 2×211404443334² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211404443295 and 211404443304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2516719522 + ... + 2516719605.

It is an arithmetic number, because the mean of its divisors is an integer number (30200634768).

Almost surely, 2^211404443334 is an apocalyptic number.

211404443334 is an abundant number, since it is smaller than the sum of its proper divisors (271805712954).

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

211404443334 is a wasteful number, since it uses less digits than its factorization.

211404443334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033439139.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 211404443334 its reverse (433344404112), we get a palindrome (644748847446).

The spelling of 211404443334 in words is "two hundred eleven billion, four hundred four million, four hundred forty-three thousand, three hundred thirty-four".