211333401312 has 96 divisors (see below), whose sum is σ = 605508099840. Its totient is φ = 64005918720.

The previous prime is 211333401271. The next prime is 211333401361. The reversal of 211333401312 is 213104333112.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

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, 1941813 + ... + 2047755.

It is an arithmetic number, because the mean of its divisors is an integer number (6307376040).

Almost surely, 2^211333401312 is an apocalyptic number.

211333401312 is a gapful number since it is divisible by the number (22) 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 211333401312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302754049920).

211333401312 is an abundant number, since it is smaller than the sum of its proper divisors (394174698528).

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

211333401312 is a wasteful number, since it uses less digits than its factorization.

211333401312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107856 (or 107848 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 211333401312 its reverse (213104333112), we get a palindrome (424437734424).

The spelling of 211333401312 in words is "two hundred eleven billion, three hundred thirty-three million, four hundred one thousand, three hundred twelve".