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122020211011 = 1957123094871
BaseRepresentation
bin111000110100011111…
…0001010100101000011
3102122221210112222000111
41301220332022211003
53444344133223021
6132015540332151
711546526452266
oct1615076124503
9378853488014
10122020211011
11478262565a6
121b7943a4057
13b6778b9bba
145c97782cdd
15329250b8e1
hex1c68f8a943

122020211011 has 16 divisors (see below), whose sum is σ = 128749420800. Its totient is φ = 115321989600.

The previous prime is 122020210999. The next prime is 122020211039. The reversal of 122020211011 is 110112020221.

It is a de Polignac number, because none of the positive numbers 2k-122020211011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122020210982 and 122020211000.

It is not an unprimeable number, because it can be changed into a prime (122020211111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25047906 + ... + 25052776.

It is an arithmetic number, because the mean of its divisors is an integer number (8046838800).

Almost surely, 2122020211011 is an apocalyptic number.

122020211011 is a deficient number, since it is larger than the sum of its proper divisors (6729209789).

122020211011 is a wasteful number, since it uses less digits than its factorization.

122020211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770.

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

Adding to 122020211011 its reverse (110112020221), we get a palindrome (232132231232).

The spelling of 122020211011 in words is "one hundred twenty-two billion, twenty million, two hundred eleven thousand, eleven".

Divisors: 1 19 571 2309 4871 10849 43871 92549 1318439 2781341 11247139 25050341 52845479 213695641 6422116369 122020211011