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2020121212012 = 2223197111461113
BaseRepresentation
bin11101011001011000100…
…110110111010001101100
321011010021201110022211121
4131121120212313101230
5231044202012241022
64144010400230324
7265643325661531
oct35313046672154
97133251408747
102020121212012
1170980183a222
1228761a60b3a4
1311865c09b797
146dabacc8d88
15378346dd2c7
hex1d6589b746c

2020121212012 has 24 divisors (see below), whose sum is σ = 3707642496096. Its totient is φ = 961240629888.

The previous prime is 2020121211949. The next prime is 2020121212033. The reversal of 2020121212012 is 2102121210202.

It is a happy number.

It is a super-4 number, since 4×20201212120124 (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55712433 + ... + 55748680.

It is an arithmetic number, because the mean of its divisors is an integer number (154485104004).

Almost surely, 22020121212012 is an apocalyptic number.

It is an amenable number.

2020121212012 is a deficient number, since it is larger than the sum of its proper divisors (1687521284084).

2020121212012 is a wasteful number, since it uses less digits than its factorization.

2020121212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111461337 (or 111461335 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2020121212012 its reverse (2102121210202), we get a palindrome (4122242422214).

The spelling of 2020121212012 in words is "two trillion, twenty billion, one hundred twenty-one million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 23 46 92 197 394 788 4531 9062 18124 111461113 222922226 445844452 2563605599 5127211198 10254422396 21957839261 43915678522 87831357044 505030303003 1010060606006 2020121212012