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20102211211210 = 253787153080751
BaseRepresentation
bin1001001001000011010010…
…01010001000111111001010
32122011202022122220000102221
410210201221022020333022
510113323312032224320
6110430454531044254
74143223351002202
oct444415112107712
978152278800387
1020102211211210
11645033318a917
122307b39a4068a
13b2a826c4ba7b
144d6d48c37402
1524cd882a43aa
hex124869288fca

20102211211210 has 16 divisors (see below), whose sum is σ = 36184936315392. Its totient is φ = 8040672010000.

The previous prime is 20102211211193. The next prime is 20102211211279. The reversal of 20102211211210 is 1211211220102.

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 7 ways as a sum of consecutive naturals, for example, 26161666 + ... + 26919085.

It is an arithmetic number, because the mean of its divisors is an integer number (2261558519712).

Almost surely, 220102211211210 is an apocalyptic number.

20102211211210 is a deficient number, since it is larger than the sum of its proper divisors (16082725104182).

20102211211210 is a wasteful number, since it uses less digits than its factorization.

20102211211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53118629.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20102211211210 its reverse (1211211220102), we get a palindrome (21313422431312).

The spelling of 20102211211210 in words is "twenty trillion, one hundred two billion, two hundred eleven million, two hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 37871 75742 189355 378710 53080751 106161502 265403755 530807510 2010221121121 4020442242242 10051105605605 20102211211210