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103220120220 = 223571092638573
BaseRepresentation
bin110000000100001100…
…1100000101010011100
3100212102120212101202120
41200020121200222130
53142343322321340
6115230233222540
710312614355050
oct1401031405234
9325376771676
10103220120220
113a859081088
1218008261a50
13996c9a4319
144dd29a5c60
152a41cae4d0
hex1808660a9c

103220120220 has 192 divisors, whose sum is σ = 334641162240. Its totient is φ = 23285117952.

The previous prime is 103220120131. The next prime is 103220120299. The reversal of 103220120220 is 22021022301.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 103220120220.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 12035854 + ... + 12044426.

It is an arithmetic number, because the mean of its divisors is an integer number (1742922720).

Almost surely, 2103220120220 is an apocalyptic number.

103220120220 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 103220120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167320581120).

103220120220 is an abundant number, since it is smaller than the sum of its proper divisors (231421042020).

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

103220120220 is a wasteful number, since it uses less digits than its factorization.

103220120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8964 (or 8962 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 103220120220 its reverse (22021022301), we get a palindrome (125241142521).

The spelling of 103220120220 in words is "one hundred three billion, two hundred twenty million, one hundred twenty thousand, two hundred twenty".