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1210002211212 = 223478321081647
BaseRepresentation
bin10001100110111001110…
…000001000000110001100
311021200020010122002022120
4101212321300020012030
5124311041031224322
62323511202412540
7153263661044454
oct21467160100614
94250203562276
101210002211212
11427182781453
1217660b361150
138a14489a792
14427c8aa4d64
152171cd83a5c
hex119b9c0818c

1210002211212 has 24 divisors (see below), whose sum is σ = 2823928912896. Its totient is φ = 403249724688.

The previous prime is 1210002211211. The next prime is 1210002211219. The reversal of 1210002211212 is 2121122000121.

It is a super-2 number, since 2×12100022112122 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210002211191 and 1210002211200.

It is not an unprimeable number, because it can be changed into a prime (1210002211211) 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, 10483428 + ... + 10598219.

It is an arithmetic number, because the mean of its divisors is an integer number (117663704704).

Almost surely, 21210002211212 is an apocalyptic number.

1210002211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210002211212 is an abundant number, since it is smaller than the sum of its proper divisors (1613926701684).

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

1210002211212 is a wasteful number, since it uses less digits than its factorization.

1210002211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21086437 (or 21086435 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1210002211212 its reverse (2121122000121), we get a palindrome (3331124211333).

The spelling of 1210002211212 in words is "one trillion, two hundred ten billion, two million, two hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 4783 9566 14349 19132 28698 57396 21081647 42163294 63244941 84326588 126489882 252979764 100833517601 201667035202 302500552803 403334070404 605001105606 1210002211212