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20210201101012 = 2213388657713481
BaseRepresentation
bin1001001100001100011011…
…10110111000001011010100
32122120002001122220211000011
410212012031312320023110
510122110442440213022
6110552234353130004
74154065423632106
oct446061566701324
978502048824004
1020210201101012
11649210970842a
122324a57559904
13b37a76b71850
144dc27108d576
15250aa8b8d977
hex12618ddb82d4

20210201101012 has 12 divisors (see below), whose sum is σ = 38088455921236. Its totient is φ = 9327785123520.

The previous prime is 20210201101009. The next prime is 20210201101091. The reversal of 20210201101012 is 21010110201202.

It can be written as a sum of positive squares in 2 ways, for example, as 7912316397456 + 12297884703556 = 2812884^2 + 3506834^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20210201100983 and 20210201101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194328856689 + ... + 194328856792.

Almost surely, 220210201101012 is an apocalyptic number.

It is an amenable number.

20210201101012 is a deficient number, since it is larger than the sum of its proper divisors (17878254820224).

20210201101012 is a wasteful number, since it uses less digits than its factorization.

20210201101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388657713498 (or 388657713496 counting only the distinct ones).

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

Adding to 20210201101012 its reverse (21010110201202), we get a palindrome (41220311302214).

The spelling of 20210201101012 in words is "twenty trillion, two hundred ten billion, two hundred one million, one hundred one thousand, twelve".

Divisors: 1 2 4 13 26 52 388657713481 777315426962 1554630853924 5052550275253 10105100550506 20210201101012