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2020021122220 = 225991101918321
BaseRepresentation
bin11101011001010010101…
…001000011010010101100
321011010000202010020110021
4131121102221003102230
5231044000401402340
64143552423051524
7265641002143543
oct35312251032254
97133022106407
102020021122220
11709760297292
122875b0ba0ba4
1311864442615a
146daab8b315a
153782aa1be4a
hex1d652a434ac

2020021122220 has 24 divisors (see below), whose sum is σ = 4246324967808. Its totient is φ = 807193094400.

The previous prime is 2020021122179. The next prime is 2020021122233. The reversal of 2020021122220 is 222211200202.

It is a junction number, because it is equal to n+sod(n) for n = 2020021122194 and 2020021122203.

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 7 ways as a sum of consecutive naturals, for example, 50939341 + ... + 50978980.

It is an arithmetic number, because the mean of its divisors is an integer number (176930206992).

Almost surely, 22020021122220 is an apocalyptic number.

2020021122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020021122220 is an abundant number, since it is smaller than the sum of its proper divisors (2226303845588).

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

2020021122220 is a wasteful number, since it uses less digits than its factorization.

2020021122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101919321 (or 101919319 counting only the distinct ones).

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

Adding to 2020021122220 its reverse (222211200202), we get a palindrome (2242232322422).

The spelling of 2020021122220 in words is "two trillion, twenty billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 991 1982 3964 4955 9910 19820 101918321 203836642 407673284 509591605 1019183210 2038366420 101001056111 202002112222 404004224444 505005280555 1010010561110 2020021122220