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2021220012110 = 2513171129810079
BaseRepresentation
bin11101011010011010000…
…110011101000001001110
321011020010022001011012112
4131122122012131001032
5231103424310341420
64144311411304022
7266012500426415
oct35323206350116
97136108034175
102021220012110
1170a216004a82
122878865ab012
131187a591c260
146db82bd447c
153789add88c5
hex1d69a19d04e

2021220012110 has 64 divisors (see below), whose sum is σ = 4152210854400. Its totient is φ = 701773811712.

The previous prime is 2021220012073. The next prime is 2021220012131. The reversal of 2021220012110 is 112100221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2090051 + ... + 2900129.

It is an arithmetic number, because the mean of its divisors is an integer number (64878294600).

Almost surely, 22021220012110 is an apocalyptic number.

2021220012110 is an abundant number, since it is smaller than the sum of its proper divisors (2130990842290).

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

2021220012110 is a wasteful number, since it uses less digits than its factorization.

2021220012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811245.

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

Adding to 2021220012110 its reverse (112100221202), we get a palindrome (2133320233312).

The spelling of 2021220012110 in words is "two trillion, twenty-one billion, two hundred twenty million, twelve thousand, one hundred ten".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 170 221 442 1105 1129 2210 2258 5645 11290 14677 19193 29354 38386 73385 95965 146770 191930 249509 499018 810079 1247545 1620158 2495090 4050395 8100790 10531027 13771343 21062054 27542686 52655135 68856715 105310270 137713430 179027459 358054918 895137295 914579191 1790274590 1829158382 4572895955 9145791910 11889529483 15547846247 23779058966 31095692494 59447647415 77739231235 118895294830 155478462470 202122001211 404244002422 1010610006055 2021220012110