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2122210020012 = 223712490856831
BaseRepresentation
bin11110111000011101100…
…100110000101010101100
321111212210110120002222120
4132320131210300222230
5234232241231120022
64302532501512540
7306216225351345
oct36703544605254
97455713502876
102122210020012
1174902a259725
122a336ba12750
1312517b57aa94
1474a035210cc
153a30becdd5c
hex1ee1d930aac

2122210020012 has 24 divisors (see below), whose sum is σ = 5021567373312. Its totient is φ = 697439912400.

The previous prime is 2122210020011. The next prime is 2122210020019. The reversal of 2122210020012 is 2100200122212.

It is a junction number, because it is equal to n+sod(n) for n = 2122210019973 and 2122210020000.

It is not an unprimeable number, because it can be changed into a prime (2122210020011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245427564 + ... + 1245429267.

It is an arithmetic number, because the mean of its divisors is an integer number (209231973888).

Almost surely, 22122210020012 is an apocalyptic number.

It is an amenable number.

2122210020012 is an abundant number, since it is smaller than the sum of its proper divisors (2899357353300).

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

2122210020012 is a wasteful number, since it uses less digits than its factorization.

2122210020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490856909 (or 2490856907 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2122210020012 its reverse (2100200122212), we get a palindrome (4222410142224).

The spelling of 2122210020012 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, twenty thousand, twelve".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 2490856831 4981713662 7472570493 9963427324 14945140986 29890281972 176850835001 353701670002 530552505003 707403340004 1061105010006 2122210020012