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2021010011212 = 2217229129784871
BaseRepresentation
bin11101011010001101100…
…101010111010001001100
321011012120122220000010111
4131122031211113101030
5231103012030324322
64144234510245404
7266004340440043
oct35321545272114
97135518800114
102021010011212
1170a118511215
122878281b6864
13118771272b7a
146db62d6b55a
1537887756177
hex1d68d95744c

2021010011212 has 24 divisors (see below), whose sum is σ = 3761165590560. Its totient is φ = 946910411520.

The previous prime is 2021010011191. The next prime is 2021010011249. The reversal of 2021010011212 is 2121100101202.

It is a super-3 number, since 3×20210100112123 (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021010011192 and 2021010011201.

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, 64876864 + ... + 64908007.

It is an arithmetic number, because the mean of its divisors is an integer number (156715232940).

Almost surely, 22021010011212 is an apocalyptic number.

It is an amenable number.

2021010011212 is a deficient number, since it is larger than the sum of its proper divisors (1740155579348).

2021010011212 is a wasteful number, since it uses less digits than its factorization.

2021010011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129785121 (or 129785119 counting only the distinct ones).

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

Adding to 2021010011212 its reverse (2121100101202), we get a palindrome (4142110112414).

The spelling of 2021010011212 in words is "two trillion, twenty-one billion, ten million, eleven thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 229 458 916 3893 7786 15572 129784871 259569742 519139484 2206342807 4412685614 8825371228 29720735459 59441470918 118882941836 505252502803 1010505005606 2021010011212