211444042404 has 48 divisors (see below), whose sum is σ = 583293916800. Its totient is φ = 58329390336.

The previous prime is 211444042387. The next prime is 211444042421. The reversal of 211444042404 is 404240444112.

It is an interprime number because it is at equal distance from previous prime (211444042387) and next prime (211444042421).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43397409 + ... + 43402280.

It is an arithmetic number, because the mean of its divisors is an integer number (12151956600).

Almost surely, 2^211444042404 is an apocalyptic number.

It is an amenable number.

211444042404 is an abundant number, since it is smaller than the sum of its proper divisors (371849874396).

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

211444042404 is a wasteful number, since it uses less digits than its factorization.

211444042404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86799732 (or 86799730 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 211444042404 its reverse (404240444112), we get a palindrome (615684486516).

The spelling of 211444042404 in words is "two hundred eleven billion, four hundred forty-four million, forty-two thousand, four hundred four".