211212243311332 has 12 divisors (see below), whose sum is σ = 369625154427900. Its totient is φ = 105605056331936.

The previous prime is 211212243311317. The next prime is 211212243311339. The reversal of 211212243311332 is 233113342212112.

It can be written as a sum of positive squares in 2 ways, for example, as 83684550101476 + 127527693209856 = 9147926^2 + 11292816^2 .

It is a super-2 number, since 2×211212243311332² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212243311294 and 211212243311303.

It is not an unprimeable number, because it can be changed into a prime (211212243311339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265884763 + ... + 266677954.

It is an arithmetic number, because the mean of its divisors is an integer number (30802096202325).

Almost surely, 2^{211212243311332} is an apocalyptic number.

It is an amenable number.

211212243311332 is a deficient number, since it is larger than the sum of its proper divisors (158412911116568).

211212243311332 is a wasteful number, since it uses less digits than its factorization.

211212243311332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532661870 (or 532661868 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

Adding to 211212243311332 its reverse (233113342212112), we get a palindrome (444325585523444).

The spelling of 211212243311332 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred forty-three million, three hundred eleven thousand, three hundred thirty-two".