212162235552 has 384 divisors, whose sum is σ = 667808064000. Its totient is φ = 65363189760.

The previous prime is 212162235533. The next prime is 212162235559. The reversal of 212162235552 is 255532261212.

212162235552 is a `hidden beast` number, since 2 + 1 + 21 + 62 + 23 + 5 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (212162235559) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 88806774 + ... + 88809162.

It is an arithmetic number, because the mean of its divisors is an integer number (1739083500).

Almost surely, 2^212162235552 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 212162235552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333904032000).

212162235552 is an abundant number, since it is smaller than the sum of its proper divisors (455645828448).

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

212162235552 is a wasteful number, since it uses less digits than its factorization.

212162235552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581 (or 2567 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 212162235552 its reverse (255532261212), we get a palindrome (467694496764).

The spelling of 212162235552 in words is "two hundred twelve billion, one hundred sixty-two million, two hundred thirty-five thousand, five hundred fifty-two".