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120211002020 = 22567101988037
BaseRepresentation
bin110111111110100100…
…0100101001010100100
3102111021201012121212002
41233331020211022210
53432143004031040
6131120230544432
711453640441434
oct1577510451244
9374251177762
10120211002020
1146a87a8205a
121b36a508118
13b449b24335
145b653902c4
1531d8784a15
hex1bfd2252a4

120211002020 has 48 divisors (see below), whose sum is σ = 256465258560. Its totient is φ = 47319702144.

The previous prime is 120211002011. The next prime is 120211002059. The reversal of 120211002020 is 20200112021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120211001992 and 120211002010.

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 15 ways as a sum of consecutive naturals, for example, 1321442 + ... + 1409478.

It is an arithmetic number, because the mean of its divisors is an integer number (5343026220).

Almost surely, 2120211002020 is an apocalyptic number.

120211002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120211002020 is an abundant number, since it is smaller than the sum of its proper divisors (136254256540).

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

120211002020 is a wasteful number, since it uses less digits than its factorization.

120211002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89132 (or 89130 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120211002020 its reverse (20200112021), we get a palindrome (140411114041).

The spelling of 120211002020 in words is "one hundred twenty billion, two hundred eleven million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1019 1340 2038 4076 5095 10190 20380 68273 88037 136546 176074 273092 341365 352148 440185 682730 880370 1365460 1760740 5898479 11796958 23593916 29492395 58984790 89709703 117969580 179419406 358838812 448548515 897097030 1794194060 6010550101 12021100202 24042200404 30052750505 60105501010 120211002020