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1212210002212 = 2211431213528197
BaseRepresentation
bin10001101000111101010…
…110001011100100100100
311021212220222222111012121
4101220331112023210210
5124330101230032322
62324514231155324
7153402460003066
oct21507526134444
94255828874177
101212210002212
11428105a42510
12176b26815b44
138a4070c93a1
1442957dad736
15217ebaddec7
hex11a3d58b924

1212210002212 has 48 divisors (see below), whose sum is σ = 2369994846912. Its totient is φ = 537745783680.

The previous prime is 1212210002209. The next prime is 1212210002221. The reversal of 1212210002212 is 2122000122121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2030898 + ... + 2559094.

It is an arithmetic number, because the mean of its divisors is an integer number (49374892644).

Almost surely, 21212210002212 is an apocalyptic number.

It is an amenable number.

1212210002212 is a deficient number, since it is larger than the sum of its proper divisors (1157784844700).

1212210002212 is a wasteful number, since it uses less digits than its factorization.

1212210002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529468 (or 529466 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212210002212 its reverse (2122000122121), we get a palindrome (3334210124333).

The spelling of 1212210002212 in words is "one trillion, two hundred twelve billion, two hundred ten million, two thousand, two hundred twelve".

Divisors: 1 2 4 11 22 43 44 86 172 473 946 1213 1892 2426 4852 13343 26686 52159 53372 104318 208636 528197 573749 1056394 1147498 2112788 2294996 5810167 11620334 22712471 23240668 45424942 90849884 249837181 499674362 640702961 999348724 1281405922 2562811844 7047732571 14095465142 27550227323 28190930284 55100454646 110200909292 303052500553 606105001106 1212210002212