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12201101202020 = 225610055060101
BaseRepresentation
bin1011000110001100101001…
…0011011001001001100100
31121012102011201110122110212
42301203022103121021210
53044400323401431040
641541035234434552
72366333443020023
oct261431223311144
947172151418425
1012201101202020
113984504601415
1214507a4132a58
136a6735bc0893
143027720328ba
151625a2db6d65
hexb18ca4d9264

12201101202020 has 12 divisors (see below), whose sum is σ = 25622312524284. Its totient is φ = 4880440480800.

The previous prime is 12201101202001. The next prime is 12201101202041. The reversal of 12201101202020 is 2020210110221.

It can be written as a sum of positive squares in 2 ways, for example, as 7311908034916 + 4889193167104 = 2704054^2 + 2211152^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12201101201986 and 12201101202004.

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 3 ways as a sum of consecutive naturals, for example, 305027530031 + ... + 305027530070.

It is an arithmetic number, because the mean of its divisors is an integer number (2135192710357).

Almost surely, 212201101202020 is an apocalyptic number.

12201101202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201101202020 is an abundant number, since it is smaller than the sum of its proper divisors (13421211322264).

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

12201101202020 is a wasteful number, since it uses less digits than its factorization.

12201101202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610055060110 (or 610055060108 counting only the distinct ones).

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

Adding to 12201101202020 its reverse (2020210110221), we get a palindrome (14221311312241).

The spelling of 12201101202020 in words is "twelve trillion, two hundred one billion, one hundred one million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 610055060101 1220110120202 2440220240404 3050275300505 6100550601010 12201101202020