102212552 has 96 divisors (see below), whose sum is σ = 229262400. Its totient is φ = 42501888.

The previous prime is 102212543. The next prime is 102212557. The reversal of 102212552 is 255212201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102212557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 590738 + ... + 590910.

It is an arithmetic number, because the mean of its divisors is an integer number (2388150).

Almost surely, 2^102212552 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 102212552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114631200).

102212552 is an abundant number, since it is smaller than the sum of its proper divisors (127049848).

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

102212552 is a wasteful number, since it uses less digits than its factorization.

102212552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 102212552 is about 10110.0223540801. The cubic root of 102212552 is about 467.5571943332.

Adding to 102212552 its reverse (255212201), we get a palindrome (357424753).

The spelling of 102212552 in words is "one hundred two million, two hundred twelve thousand, five hundred fifty-two".