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20000212001121 = 311768437788701
BaseRepresentation
bin1001000110000101010011…
…00010000010000101100001
32121211000001011101021112010
410203002221202002011201
510110140413233013441
6110311545350023133
74132652620011642
oct443025142020541
977730034337463
1020000212001121
1164110512a7680
1222b0212647aa9
13b210201b06a1
144d20304856c9
1524a3b87b1116
hex1230a9882161

20000212001121 has 16 divisors (see below), whose sum is σ = 29091292198848. Its totient is φ = 12121309464000.

The previous prime is 20000212001093. The next prime is 20000212001129. The reversal of 20000212001121 is 12110021200002.

It is not a de Polignac number, because 20000212001121 - 25 = 20000212001089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000212001097 and 20000212001106.

It is not an unprimeable number, because it can be changed into a prime (20000212001129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24964071 + ... + 25752771.

It is an arithmetic number, because the mean of its divisors is an integer number (1818205762428).

Almost surely, 220000212001121 is an apocalyptic number.

It is an amenable number.

20000212001121 is a deficient number, since it is larger than the sum of its proper divisors (9091080197727).

20000212001121 is a wasteful number, since it uses less digits than its factorization.

20000212001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557152.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20000212001121 its reverse (12110021200002), we get a palindrome (32110233201123).

The spelling of 20000212001121 in words is "twenty trillion, two hundred twelve million, one thousand, one hundred twenty-one".

Divisors: 1 3 11 33 768437 788701 2305311 2366103 8452807 8675711 25358421 26027133 606067030337 1818201091011 6666737333707 20000212001121