211444220000 has 360 divisors, whose sum is σ = 580781977776. Its totient is φ = 75301632000.

The previous prime is 211444219993. The next prime is 211444220003. The reversal of 211444220000 is 22444112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211444220003) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 218659517 + ... + 218660483.

Almost surely, 2^211444220000 is an apocalyptic number.

211444220000 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 211444220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290390988888).

211444220000 is an abundant number, since it is smaller than the sum of its proper divisors (369337757776).

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

211444220000 is an equidigital number, since it uses as much as digits as its factorization.

211444220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 211444220000 its reverse (22444112), we get a palindrome (211466664112).

The spelling of 211444220000 in words is "two hundred eleven billion, four hundred forty-four million, two hundred twenty thousand".