211444234044 has 24 divisors (see below), whose sum is σ = 493518891600. Its totient is φ = 70460123904.

The previous prime is 211444234021. The next prime is 211444234049. The reversal of 211444234044 is 440432444112.

It is a super-2 number, since 2×211444234044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211444233996 and 211444234014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211444234049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619519 + ... + 2699030.

It is an arithmetic number, because the mean of its divisors is an integer number (20563287150).

Almost surely, 2^211444234044 is an apocalyptic number.

It is an amenable number.

211444234044 is an abundant number, since it is smaller than the sum of its proper divisors (282074657556).

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

211444234044 is a wasteful number, since it uses less digits than its factorization.

211444234044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321869 (or 5321867 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 211444234044 its reverse (440432444112), we get a palindrome (651876678156).

The spelling of 211444234044 in words is "two hundred eleven billion, four hundred forty-four million, two hundred thirty-four thousand, forty-four".