102215200 has 72 divisors (see below), whose sum is σ = 253390032. Its totient is φ = 40254720.

The previous prime is 102215161. The next prime is 102215207. The reversal of 102215200 is 2512201.

It is a super-2 number, since 2×102215200² = 20895894222080000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102215207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52647 + ... + 54553.

It is an arithmetic number, because the mean of its divisors is an integer number (3519306).

Almost surely, 2^102215200 is an apocalyptic number.

102215200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102215200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126695016).

102215200 is an abundant number, since it is smaller than the sum of its proper divisors (151174832).

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

102215200 is a wasteful number, since it uses less digits than its factorization.

102215200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994 (or 1981 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 102215200 is about 10110.1533123885. The cubic root of 102215200 is about 467.5612319350.

Adding to 102215200 its reverse (2512201), we get a palindrome (104727401).

The spelling of 102215200 in words is "one hundred two million, two hundred fifteen thousand, two hundred".