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20000112221 = 35961990001
BaseRepresentation
bin10010101000000110…
…010111111001011101
31220121211201222012002
4102220012113321131
5311430012042341
613104331452045
71305423102035
oct225006277135
956554658162
1020000112221
1185335a6371
123a61bb7025
131b69716a3b
14d7a3148c5
157c0c8e29b
hex4a8197e5d

20000112221 has 8 divisors (see below), whose sum is σ = 20088446400. Its totient is φ = 19911960000.

The previous prime is 20000112199. The next prime is 20000112229. The reversal of 20000112221 is 12221100002.

It is a happy number.

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 20000112221 - 26 = 20000112157 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 (20000112229) 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, 177221 + ... + 267221.

It is an arithmetic number, because the mean of its divisors is an integer number (2511055800).

Almost surely, 220000112221 is an apocalyptic number.

It is an amenable number.

20000112221 is a deficient number, since it is larger than the sum of its proper divisors (88334179).

20000112221 is an equidigital number, since it uses as much as digits as its factorization.

20000112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90979.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000112221 its reverse (12221100002), we get a palindrome (32221212223).

The spelling of 20000112221 in words is "twenty billion, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 359 619 90001 222221 32310359 55710619 20000112221