102122200 has 24 divisors (see below), whose sum is σ = 237434580. Its totient is φ = 40848800.

The previous prime is 102122177. The next prime is 102122201. The reversal of 102122200 is 2221201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255106 + ... + 255505.

Almost surely, 2^102122200 is an apocalyptic number.

102122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102122200 is an abundant number, since it is smaller than the sum of its proper divisors (135312380).

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

102122200 is a wasteful number, since it uses less digits than its factorization.

102122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510627 (or 510618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 102122200 is about 10105.5529289594. The cubic root of 102122200 is about 467.4193861401.

Adding to 102122200 its reverse (2221201), we get a palindrome (104343401).

Subtracting from 102122200 its reverse (2221201), we obtain a palindrome (99900999).

The spelling of 102122200 in words is "one hundred two million, one hundred twenty-two thousand, two hundred".