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101202220220 = 225509219531
BaseRepresentation
bin101111001000000011…
…1110101010010111100
3100200012221211110100112
41132100013311102330
53124230232021340
6114254110445152
710211612451503
oct1362007652274
9320187743315
10101202220220
1139a13018a32
12177445037b8
13970a90065a
144c809ab83a
152974a63065
hex17901f54bc

101202220220 has 36 divisors (see below), whose sum is σ = 212953919304. Its totient is φ = 40399289280.

The previous prime is 101202220211. The next prime is 101202220241. The reversal of 101202220220 is 22022202101.

It is a junction number, because it is equal to n+sod(n) for n = 101202220195 and 101202220204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5171855 + ... + 5191385.

Almost surely, 2101202220220 is an apocalyptic number.

101202220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101202220220 is an abundant number, since it is smaller than the sum of its proper divisors (111751699084).

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

101202220220 is an equidigital number, since it uses as much as digits as its factorization.

101202220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20558 (or 20047 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 101202220220 its reverse (22022202101), we get a palindrome (123224422321).

The spelling of 101202220220 in words is "one hundred one billion, two hundred two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 509 1018 2036 2545 5090 10180 19531 39062 78124 97655 195310 259081 390620 518162 1036324 1295405 2590810 5181620 9941279 19882558 39765116 49706395 99412790 198825580 5060111011 10120222022 20240444044 25300555055 50601110110 101202220220