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12121001101101 = 39475799173571
BaseRepresentation
bin1011000001100010001111…
…1101110000011100101101
31120220202102101222220211110
42300120203331300130231
53042042302240213401
641440151103342233
72360466464263014
oct260304375603455
946822371886743
1012121001101101
113953540145002
12143916a8b1979
1369c00c10b369
142dc933c7ba7b
15160465c239d6
hexb0623f7072d

12121001101101 has 16 divisors (see below), whose sum is σ = 16178899511808. Its totient is φ = 8071885575600.

The previous prime is 12121001101037. The next prime is 12121001101109. The reversal of 12121001101101 is 10110110012121.

12121001101101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12121001101101 - 26 = 12121001101037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121001101109) 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, 164715646 + ... + 164789216.

It is an arithmetic number, because the mean of its divisors is an integer number (1011181219488).

Almost surely, 212121001101101 is an apocalyptic number.

It is an amenable number.

12121001101101 is a deficient number, since it is larger than the sum of its proper divisors (4057898410707).

12121001101101 is an equidigital number, since it uses as much as digits as its factorization.

12121001101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132512.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 12121001101101 its reverse (10110110012121), we get a palindrome (22231111113222).

The spelling of 12121001101101 in words is "twelve trillion, one hundred twenty-one billion, one million, one hundred one thousand, one hundred one".

Divisors: 1 3 947 2841 57991 73571 173973 220713 54917477 69671737 164752431 209015211 4266455861 12799367583 4040333700367 12121001101101