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20201211210202 = 2112482991728319
BaseRepresentation
bin1001001011111011101100…
…00001001010100111011010
32122112012212010212001012021
410211331312001022213122
510121434040032211302
6110544150332405054
74153326563053651
oct445756601124732
978465763761167
1020201211210202
1164893160a1400
12232316891678a
13b36c73520a29
144dba5b14a198
1525072e80c437
hex125f7604a9da

20201211210202 has 24 divisors (see below), whose sum is σ = 33307664544000. Its totient is φ = 9182173304040.

The previous prime is 20201211210197. The next prime is 20201211210221.

It is a happy number.

20201211210202 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×202012112102023 (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10824199 + ... + 12552517.

It is an arithmetic number, because the mean of its divisors is an integer number (1387819356000).

Almost surely, 220201211210202 is an apocalyptic number.

20201211210202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20201211210202 is a deficient number, since it is larger than the sum of its proper divisors (13106453333798).

20201211210202 is a wasteful number, since it uses less digits than its factorization.

20201211210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776642 (or 1776631 counting only the distinct ones).

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

It can be divided in two parts, 2020121 and 1210202, that added together give a palindrome (3230323).

The spelling of 20201211210202 in words is "twenty trillion, two hundred one billion, two hundred eleven million, two hundred ten thousand, two hundred two".

Divisors: 1 2 11 22 121 242 48299 96598 531289 1062578 1728319 3456638 5844179 11688358 19011509 38023018 209126599 418253198 83476079381 166952158762 918236873191 1836473746382 10100605605101 20201211210202