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12101200023221 = 45477103374681
BaseRepresentation
bin1011000000011000011110…
…1110101000111010110101
31120211212022102202221102122
42300012013232220322311
53041231224201220341
641423114201445325
72356166006014001
oct260060756507265
946755272687378
1012101200023221
1139460a9a32131
1214353634a0845
1369a1a4a0122a
142db9b6177701
1515eba769c94b
hexb0187ba8eb5

12101200023221 has 8 divisors (see below), whose sum is σ = 12105597740544. Its totient is φ = 12096803078560.

The previous prime is 12101200023217. The next prime is 12101200023223. The reversal of 12101200023221 is 12232000210121.

12101200023221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12101200023221 - 22 = 12101200023217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101200023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101200023223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32110001 + ... + 32484681.

It is an arithmetic number, because the mean of its divisors is an integer number (1513199717568).

Almost surely, 212101200023221 is an apocalyptic number.

It is an amenable number.

12101200023221 is a deficient number, since it is larger than the sum of its proper divisors (4397717323).

12101200023221 is an equidigital number, since it uses as much as digits as its factorization.

12101200023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386331.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12101200023221 its reverse (12232000210121), we get a palindrome (24333200233342).

The spelling of 12101200023221 in words is "twelve trillion, one hundred one billion, two hundred million, twenty-three thousand, two hundred twenty-one".

Divisors: 1 4547 7103 374681 32297341 1703674507 2661359143 12101200023221