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2122212022028 = 22775793286501
BaseRepresentation
bin11110111000011101101…
…100011001011100001100
321111212210121022211020022
4132320131230121130030
5234232242234201103
64302533012441312
7306216251360210
oct36703554313414
97455717284208
102122212022028
117490303a688a
122a3370619238
1312517bacc0c7
1474a038c2940
153a30c277138
hex1ee1db1970c

2122212022028 has 12 divisors (see below), whose sum is σ = 4244424044112. Its totient is φ = 909519438000.

The previous prime is 2122212022027. The next prime is 2122212022061. The reversal of 2122212022028 is 8202202122212.

2122212022028 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2122212021988 and 2122212022006.

It is not an unprimeable number, because it can be changed into a prime (2122212022027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37896643223 + ... + 37896643278.

It is an arithmetic number, because the mean of its divisors is an integer number (353702003676).

Almost surely, 22122212022028 is an apocalyptic number.

2122212022028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2122212022028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2122212022028 is a wasteful number, since it uses less digits than its factorization.

2122212022028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75793286512 (or 75793286510 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The spelling of 2122212022028 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, twenty-two thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 75793286501 151586573002 303173146004 530553005507 1061106011014 2122212022028