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10211212010020 = 225772937228643
BaseRepresentation
bin1001010010010111101110…
…1010100010001000100100
31100011011220220220001122011
42110211323222202020210
52314300030233310040
633414544355244004
72102510231662210
oct224457352421044
940134826801564
1010211212010020
113287606a792aa
12118b0022a9604
13590bb42a2a48
1427432230b940
1512a93c8843ea
hex9497baa2224

10211212010020 has 24 divisors (see below), whose sum is σ = 24506908824384. Its totient is φ = 3500986974816.

The previous prime is 10211212009993. The next prime is 10211212010023. The reversal of 10211212010020 is 2001021211201.

It is not an unprimeable number, because it can be changed into a prime (10211212010023) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36468614182 + ... + 36468614461.

It is an arithmetic number, because the mean of its divisors is an integer number (1021121201016).

Almost surely, 210211212010020 is an apocalyptic number.

10211212010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10211212010020 is an abundant number, since it is smaller than the sum of its proper divisors (14295696814364).

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

10211212010020 is a wasteful number, since it uses less digits than its factorization.

10211212010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72937228659 (or 72937228657 counting only the distinct ones).

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

Adding to 10211212010020 its reverse (2001021211201), we get a palindrome (12212233221221).

The spelling of 10211212010020 in words is "ten trillion, two hundred eleven billion, two hundred twelve million, ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 72937228643 145874457286 291748914572 364686143215 510560600501 729372286430 1021121201002 1458744572860 2042242402004 2552803002505 5105606005010 10211212010020