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102110122220 = 2255105506111
BaseRepresentation
bin101111100011000111…
…1001101000011101100
3100202120020012122202112
41133012033031003230
53133110142402340
6114524142143152
710243245501221
oct1370617150354
9322506178675
10102110122220
113a339558167
1217958581ab8
139823a32982
144d293c3948
1529c9601065
hex17c63cd0ec

102110122220 has 12 divisors (see below), whose sum is σ = 214431256704. Its totient is φ = 40844048880.

The previous prime is 102110122211. The next prime is 102110122237. The reversal of 102110122220 is 22221011201.

It is a junction number, because it is equal to n+sod(n) for n = 102110122195 and 102110122204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2552753036 + ... + 2552753075.

It is an arithmetic number, because the mean of its divisors is an integer number (17869271392).

Almost surely, 2102110122220 is an apocalyptic number.

102110122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102110122220 is an abundant number, since it is smaller than the sum of its proper divisors (112321134484).

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

102110122220 is a wasteful number, since it uses less digits than its factorization.

102110122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105506120 (or 5105506118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102110122220 its reverse (22221011201), we get a palindrome (124331133421).

The spelling of 102110122220 in words is "one hundred two billion, one hundred ten million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5105506111 10211012222 20422024444 25527530555 51055061110 102110122220