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20122011201 = 341857190891
BaseRepresentation
bin10010101111010111…
…011000011001000001
31220221100010002011010
4102233113120121001
5312202213324301
613124404311133
71311433162455
oct225727303101
956840102133
1020122011201
118596394926
123a969a24a9
131b88a57106
14d8c5a6665
157cb81c5d6
hex4af5d8641

20122011201 has 16 divisors (see below), whose sum is σ = 27515936448. Its totient is φ = 13072147200.

The previous prime is 20122011149. The next prime is 20122011229. The reversal of 20122011201 is 10211022102.

It is not a de Polignac number, because 20122011201 - 210 = 20122010177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122011251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9966 + ... + 200856.

It is an arithmetic number, because the mean of its divisors is an integer number (1719746028).

Almost surely, 220122011201 is an apocalyptic number.

It is an amenable number.

20122011201 is a deficient number, since it is larger than the sum of its proper divisors (7393925247).

20122011201 is a wasteful number, since it uses less digits than its factorization.

20122011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191792.

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

Adding to 20122011201 its reverse (10211022102), we get a palindrome (30333033303).

The spelling of 20122011201 in words is "twenty billion, one hundred twenty-two million, eleven thousand, two hundred one".

Divisors: 1 3 41 123 857 2571 35137 105411 190891 572673 7826531 23479593 163593587 490780761 6707337067 20122011201