211242434221032 has 128 divisors (see below), whose sum is σ = 552709490319360. Its totient is φ = 67151994398720.

The previous prime is 211242434221031. The next prime is 211242434221067. The reversal of 211242434221032 is 230122434242112.

It is a super-2 number, since 2×211242434221032² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211242434220984 and 211242434221002.

It is not an unprimeable number, because it can be changed into a prime (211242434221031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1388662657 + ... + 1388814767.

It is an arithmetic number, because the mean of its divisors is an integer number (4318042893120).

Almost surely, 2^{211242434221032} 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 211242434221032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276354745159680).

211242434221032 is an abundant number, since it is smaller than the sum of its proper divisors (341467056098328).

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

211242434221032 is a wasteful number, since it uses less digits than its factorization.

211242434221032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159623 (or 159619 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 211242434221032 its reverse (230122434242112), we get a palindrome (441364868463144).

The spelling of 211242434221032 in words is "two hundred eleven trillion, two hundred forty-two billion, four hundred thirty-four million, two hundred twenty-one thousand, thirty-two".