211044222480 has 640 divisors, whose sum is σ = 854585303040. Its totient is φ = 41864232960.

The previous prime is 211044222463. The next prime is 211044222509. The reversal of 211044222480 is 84222440112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 29633320 + ... + 29640440.

It is an arithmetic number, because the mean of its divisors is an integer number (1335289536).

Almost surely, 2^211044222480 is an apocalyptic number.

211044222480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211044222480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427292651520).

211044222480 is an abundant number, since it is smaller than the sum of its proper divisors (643541080560).

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

211044222480 is a wasteful number, since it uses less digits than its factorization.

211044222480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7239 (or 7233 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 211044222480 its reverse (84222440112), we get a palindrome (295266662592).

The spelling of 211044222480 in words is "two hundred eleven billion, forty-four million, two hundred twenty-two thousand, four hundred eighty".