211201332144 has 80 divisors (see below), whose sum is σ = 611290398720. Its totient is φ = 62270657280.

The previous prime is 211201332143. The next prime is 211201332149. The reversal of 211201332144 is 441233102112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (211201332143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5385904 + ... + 5424975.

It is an arithmetic number, because the mean of its divisors is an integer number (7641129984).

Almost surely, 2^211201332144 is an apocalyptic number.

211201332144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

211201332144 is an abundant number, since it is smaller than the sum of its proper divisors (400089066576).

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

211201332144 is a wasteful number, since it uses less digits than its factorization.

211201332144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10810938 (or 10810932 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 211201332144 its reverse (441233102112), we get a palindrome (652434434256).

It can be divided in two parts, 211201 and 332144, that added together give a palindrome (543345).

The spelling of 211201332144 in words is "two hundred eleven billion, two hundred one million, three hundred thirty-two thousand, one hundred forty-four".