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122102020012 = 22741389105361
BaseRepresentation
bin111000110110111011…
…0001111011110101100
3102200011111111021212111
41301231312033132230
54000031104120022
6132032022013404
711551542021430
oct1615566173654
9380144437774
10122102020012
1147868452945
121b7b7877264
13b68b8317ab
145ca459a9c0
1532997bb477
hex1c6dd8f7ac

122102020012 has 24 divisors (see below), whose sum is σ = 244212258080. Its totient is φ = 52327676160.

The previous prime is 122102019989. The next prime is 122102020013. The reversal of 122102020012 is 210020201221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122102019974 and 122102020001.

It is not an unprimeable number, because it can be changed into a prime (122102020013) 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 7 ways as a sum of consecutive naturals, for example, 1106212 + ... + 1211572.

Almost surely, 2122102020012 is an apocalyptic number.

It is an amenable number.

122102020012 is an abundant number, since it is smaller than the sum of its proper divisors (122110238068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122102020012 is a wasteful number, since it uses less digits than its factorization.

122102020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146761 (or 146759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122102020012 its reverse (210020201221), we get a palindrome (332122221233).

The spelling of 122102020012 in words is "one hundred twenty-two billion, one hundred two million, twenty thousand, twelve".

Divisors: 1 2 4 7 14 28 41389 82778 105361 165556 210722 289723 421444 579446 737527 1158892 1475054 2950108 4360786429 8721572858 17443145716 30525505003 61051010006 122102020012