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2122121112110 = 25435578860261
BaseRepresentation
bin11110111000011000010…
…001100110101000101110
321111212120021021010021022
4132320120101212220232
5234232101001041420
64302520004134142
7306214065554546
oct36703021465056
97455507233238
102122121112110
11748a9405391a
122a3346097352
1312516601bc5c
14749d57ba326
153a3042bac25
hex1ee18466a2e

2122121112110 has 32 divisors (see below), whose sum is σ = 3915668747232. Its totient is φ = 827619166080.

The previous prime is 2122121112109. The next prime is 2122121112191. The reversal of 2122121112110 is 112111212212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4190621 + ... + 4669640.

It is an arithmetic number, because the mean of its divisors is an integer number (122364648351).

Almost surely, 22122121112110 is an apocalyptic number.

2122121112110 is a deficient number, since it is larger than the sum of its proper divisors (1793547635122).

2122121112110 is a wasteful number, since it uses less digits than its factorization.

2122121112110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8860868.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2122121112110 its reverse (112111212212), we get a palindrome (2234232324322).

The spelling of 2122121112110 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, one hundred ten".

Divisors: 1 2 5 10 43 86 215 430 557 1114 2785 5570 23951 47902 119755 239510 8860261 17720522 44301305 88602610 380991223 761982446 1904956115 3809912230 4935165377 9870330754 24675826885 49351653770 212212111211 424424222422 1061060556055 2122121112110