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2001201212210 = 251944942835477
BaseRepresentation
bin11101000111110000111…
…000110010101100110010
321002022110011010202100012
4131013300320302230302
5230241430002242320
64131201131054522
7264403426432334
oct35076070625462
97068404122305
102001201212210
11701782a05352
12283a1a2a1442
13116935391525
146cc04217454
15370c86a74c5
hex1d1f0e32b32

2001201212210 has 64 divisors (see below), whose sum is σ = 3801775824000. Its totient is φ = 756346171392.

The previous prime is 2001201212207. The next prime is 2001201212221. The reversal of 2001201212210 is 122121021002.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365379992 + ... + 365385468.

It is an arithmetic number, because the mean of its divisors is an integer number (59402747250).

Almost surely, 22001201212210 is an apocalyptic number.

2001201212210 is a deficient number, since it is larger than the sum of its proper divisors (1800574611790).

2001201212210 is a wasteful number, since it uses less digits than its factorization.

2001201212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001201212210 its reverse (122121021002), we get a palindrome (2123322233212).

The spelling of 2001201212210 in words is "two trillion, one billion, two hundred one million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 19 38 95 190 449 898 2245 4283 4490 5477 8531 8566 10954 17062 21415 27385 42655 42830 54770 81377 85310 104063 162754 208126 406885 520315 813770 1040630 1923067 2459173 3846134 4918346 9615335 12295865 19230670 23457991 24591730 36538273 46724287 46915982 73076546 93448574 117289955 182691365 233621435 234579910 365382730 445701829 467242870 891403658 2228509145 4457018290 10532637959 21065275918 52663189795 105326379590 200120121221 400240242442 1000600606105 2001201212210