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10212222002020 = 2251078947327009
BaseRepresentation
bin1001010010011011011111…
…0111010110001101100100
31100011021112022100222012021
42110212313313112031210
52314304112313031040
633415232515032524
72102544244530253
oct224466767261544
940137468328167
1010212222002020
113287a850a7235
12118b24459b744
135910155cac4c
142743ba4da79a
1512a99b38b24a
hex949b7dd6364

10212222002020 has 24 divisors (see below), whose sum is σ = 21447654391800. Its totient is φ = 4084510098432.

The previous prime is 10212222002009. The next prime is 10212222002039. The reversal of 10212222002020 is 2020022221201.

It can be written as a sum of positive squares in 4 ways, for example, as 297179800164 + 9915042201856 = 545142^2 + 3148816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10212222001985 and 10212222002003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23447725 + ... + 23879284.

It is an arithmetic number, because the mean of its divisors is an integer number (893652266325).

Almost surely, 210212222002020 is an apocalyptic number.

10212222002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212222002020 is an abundant number, since it is smaller than the sum of its proper divisors (11235432389780).

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

10212222002020 is a wasteful number, since it uses less digits than its factorization.

10212222002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47337807 (or 47337805 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 10212222002020 its reverse (2020022221201), we get a palindrome (12232244223221).

The spelling of 10212222002020 in words is "ten trillion, two hundred twelve billion, two hundred twenty-two million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 10789 21578 43156 53945 107890 215780 47327009 94654018 189308036 236635045 473270090 946540180 510611100101 1021222200202 2042444400404 2553055500505 5106111001010 10212222002020