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20221220011223 = 7111971930169067
BaseRepresentation
bin1001001100100000111101…
…01000101011110011010111
32122121010111120221110011202
410212100132220223303113
510122301024310324343
6111001300014423115
74154635453054550
oct446203650536327
978533446843152
1020221220011223
1164968535917a0
122327011801a9b
13b38b1198a56a
144dc9d8683327
15251001215db8
hex12641ea2bcd7

20221220011223 has 32 divisors (see below), whose sum is σ = 25340525388288. Its totient is φ = 15675771888000.

The previous prime is 20221220011211. The next prime is 20221220011261. The reversal of 20221220011223 is 32211002212202.

It is not a de Polignac number, because 20221220011223 - 230 = 20220146269399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221220011195 and 20221220011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221220211223) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 292742336 + ... + 292811402.

It is an arithmetic number, because the mean of its divisors is an integer number (791891418384).

Almost surely, 220221220011223 is an apocalyptic number.

20221220011223 is a deficient number, since it is larger than the sum of its proper divisors (5119305377065).

20221220011223 is a wasteful number, since it uses less digits than its factorization.

20221220011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88583.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20221220011223 its reverse (32211002212202), we get a palindrome (52432222223425).

The spelling of 20221220011223 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, eleven thousand, two hundred twenty-three".

Divisors: 1 7 11 77 197 1379 2167 15169 19301 69067 135107 212311 483469 759737 1486177 3802297 5318159 13606199 26616079 41825267 95243393 149668189 292776869 1047677323 1333062167 9331435169 14663683837 102645786859 262613246899 1838292728293 2888745715889 20221220011223