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20122012101 = 316363616469
BaseRepresentation
bin10010101111010111…
…011000100111000101
31220221100010010101110
4102233113120213011
5312202213341401
613124404315233
71311433165212
oct225727304705
956840103343
1020122012101
118596395574
123a969a2b19
131b88a57649
14d8c5a6b09
157cb81c9d6
hex4af5d89c5

20122012101 has 16 divisors (see below), whose sum is σ = 27002363840. Its totient is φ = 13328219520.

The previous prime is 20122012069. The next prime is 20122012121. The reversal of 20122012101 is 10121022102.

It is not a de Polignac number, because 20122012101 - 25 = 20122012069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3107295 + ... + 3113763.

It is an arithmetic number, because the mean of its divisors is an integer number (1687647740).

Almost surely, 220122012101 is an apocalyptic number.

It is an amenable number.

20122012101 is a deficient number, since it is larger than the sum of its proper divisors (6880351739).

20122012101 is a wasteful number, since it uses less digits than its factorization.

20122012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12996.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20122012101 its reverse (10121022102), we get a palindrome (30243034203).

The spelling of 20122012101 in words is "twenty billion, one hundred twenty-two million, twelve thousand, one hundred one".

Divisors: 1 3 163 489 6361 6469 19083 19407 1036843 1054447 3110529 3163341 41149309 123447927 6707337367 20122012101