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1210021010212 = 227202567213337
BaseRepresentation
bin10001100110111010110…
…111110101101100100100
311021200021110000011200211
4101212322313311230210
5124311110334311322
62323513113345204
7153264306612160
oct21467267655444
94250243004624
101210021010212
11427192351413
12176615708204
138a148750351
14427cb399ca0
152171e848b77
hex119badf5b24

1210021010212 has 24 divisors (see below), whose sum is σ = 2420065311104. Its totient is φ = 518575442112.

The previous prime is 1210021010201. The next prime is 1210021010249. The reversal of 1210021010212 is 2120101200121.

It is a junction number, because it is equal to n+sod(n) for n = 1210021010192 and 1210021010201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5565208 + ... + 5778544.

Almost surely, 21210021010212 is an apocalyptic number.

It is an amenable number.

1210021010212 is an abundant number, since it is smaller than the sum of its proper divisors (1210044300892).

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

1210021010212 is a wasteful number, since it uses less digits than its factorization.

1210021010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415915 (or 415913 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1210021010212 its reverse (2120101200121), we get a palindrome (3330122210333).

The spelling of 1210021010212 in words is "one trillion, two hundred ten billion, twenty-one million, ten thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 202567 213337 405134 426674 810268 853348 1417969 1493359 2835938 2986718 5671876 5973436 43215036079 86430072158 172860144316 302505252553 605010505106 1210021010212