102220010208 has 96 divisors (see below), whose sum is σ = 299479219200. Its totient is φ = 33920477568.

The previous prime is 102220010197. The next prime is 102220010227. The reversal of 102220010208 is 802010022201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72598 + ... + 457941.

It is an arithmetic number, because the mean of its divisors is an integer number (3119575200).

Almost surely, 2^102220010208 is an apocalyptic number.

102220010208 is a gapful number since it is divisible by the number (18) 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 102220010208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149739609600).

102220010208 is an abundant number, since it is smaller than the sum of its proper divisors (197259208992).

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

102220010208 is a wasteful number, since it uses less digits than its factorization.

102220010208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530781 (or 530767 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102220010208 its reverse (802010022201), we get a palindrome (904230032409).

The spelling of 102220010208 in words is "one hundred two billion, two hundred twenty million, ten thousand, two hundred eight".