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12210010101020 = 2251932131605529
BaseRepresentation
bin1011000110101101110101…
…0100001001010100011100
31121020021011121010121102002
42301223131110021110130
53100022100041213040
641545111243221432
72400100301301344
oct261533524112434
947207147117362
1012210010101020
11398826642a066
12145246b817878
136a7525824a54
14302d792d1d24
1516292509aa15
hexb1add50951c

12210010101020 has 24 divisors (see below), whose sum is σ = 26990548645200. Its totient is φ = 4626951196032.

The previous prime is 12210010100999. The next prime is 12210010101031. The reversal of 12210010101020 is 2010101001221.

It is a junction number, because it is equal to n+sod(n) for n = 12210010100992 and 12210010101010.

It is a congruent number.

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, 16065802385 + ... + 16065803144.

It is an arithmetic number, because the mean of its divisors is an integer number (1124606193550).

Almost surely, 212210010101020 is an apocalyptic number.

12210010101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210010101020 is an abundant number, since it is smaller than the sum of its proper divisors (14780538544180).

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

12210010101020 is a wasteful number, since it uses less digits than its factorization.

12210010101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32131605557 (or 32131605555 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12210010101020 its reverse (2010101001221), we get a palindrome (14220111102241).

The spelling of 12210010101020 in words is "twelve trillion, two hundred ten billion, ten million, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 32131605529 64263211058 128526422116 160658027645 321316055290 610500505051 642632110580 1221001010102 2442002020204 3052502525255 6105005050510 12210010101020