211225354404 has 48 divisors (see below), whose sum is σ = 525049754880. Its totient is φ = 65899090080.

The previous prime is 211225354391. The next prime is 211225354447. The reversal of 211225354404 is 404453522112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5561962 + ... + 5599809.

It is an arithmetic number, because the mean of its divisors is an integer number (10938536560).

Almost surely, 2^211225354404 is an apocalyptic number.

It is an amenable number.

211225354404 is an abundant number, since it is smaller than the sum of its proper divisors (313824400476).

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

211225354404 is a wasteful number, since it uses less digits than its factorization.

211225354404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11161880 (or 11161878 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 211225354404 its reverse (404453522112), we get a palindrome (615678876516).

The spelling of 211225354404 in words is "two hundred eleven billion, two hundred twenty-five million, three hundred fifty-four thousand, four hundred four".