211201144 has 96 divisors (see below), whose sum is σ = 505612800. Its totient is φ = 80942400.

The previous prime is 211201141. The next prime is 211201147. The reversal of 211201144 is 441102112.

It is a happy number.

211201144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211201141) and next prime (211201147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211201141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 480877 + ... + 481315.

It is an arithmetic number, because the mean of its divisors is an integer number (5266800).

Almost surely, 2^211201144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211201144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252806400).

211201144 is an abundant number, since it is smaller than the sum of its proper divisors (294411656).

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

211201144 is a wasteful number, since it uses less digits than its factorization.

211201144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 211201144 is about 14532.7610590693. The cubic root of 211201144 is about 595.5232964280.

Adding to 211201144 its reverse (441102112), we get a palindrome (652303256).

The spelling of 211201144 in words is "two hundred eleven million, two hundred one thousand, one hundred forty-four".