102200220 has 36 divisors (see below), whose sum is σ = 310007880. Its totient is φ = 27253344.

The previous prime is 102200191. The next prime is 102200227. The reversal of 102200220 is 22002201.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200227) 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, 283710 + ... + 284069.

It is an arithmetic number, because the mean of its divisors is an integer number (8611330).

Almost surely, 2^102200220 is an apocalyptic number.

102200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102200220 is an abundant number, since it is smaller than the sum of its proper divisors (207807660).

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

102200220 is a wasteful number, since it uses less digits than its factorization.

102200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567794 (or 567789 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 102200220 is about 10109.4124458348. The cubic root of 102200220 is about 467.5383899003.

Adding to 102200220 its reverse (22002201), we get a palindrome (124202421).

The spelling of 102200220 in words is "one hundred two million, two hundred thousand, two hundred twenty".