212213427552 has 192 divisors, whose sum is σ = 709252185600. Its totient is φ = 60471774720.

The previous prime is 212213427551. The next prime is 212213427563. The reversal of 212213427552 is 255724312212.

212213427552 is a `hidden beast` number, since 2 + 1 + 221 + 3 + 427 + 5 + 5 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213427551) 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, 2245902 + ... + 2338482.

It is an arithmetic number, because the mean of its divisors is an integer number (3694021800).

Almost surely, 2^212213427552 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 212213427552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354626092800).

212213427552 is an abundant number, since it is smaller than the sum of its proper divisors (497038758048).

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

212213427552 is a wasteful number, since it uses less digits than its factorization.

212213427552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92986 (or 92972 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

Adding to 212213427552 its reverse (255724312212), we get a palindrome (467937739764).

The spelling of 212213427552 in words is "two hundred twelve billion, two hundred thirteen million, four hundred twenty-seven thousand, five hundred fifty-two".