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221423324121 = 3241920365203
BaseRepresentation
bin1100111000110111011…
…0111100101111011001
3210011112101001022101100
43032031312330233121
512111433332332441
6245415342142013
721666035125626
oct3161566745731
9704471038340
10221423324121
11859a576a74a
1236ab6281909
1317b59850a1c
14aa0742b34d
155b5e140cb6
hex338ddbcbd9

221423324121 has 24 divisors (see below), whose sum is σ = 327675138336. Its totient is φ = 143997312960.

The previous prime is 221423324117. The next prime is 221423324147. The reversal of 221423324121 is 121423324122.

221423324121 is a `hidden beast` number, since 2 + 2 + 14 + 233 + 2 + 412 + 1 = 666.

It is not a de Polignac number, because 221423324121 - 22 = 221423324117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221423394121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3363306 + ... + 3428508.

It is an arithmetic number, because the mean of its divisors is an integer number (13653130764).

Almost surely, 2221423324121 is an apocalyptic number.

It is an amenable number.

221423324121 is a deficient number, since it is larger than the sum of its proper divisors (106251814215).

221423324121 is a wasteful number, since it uses less digits than its factorization.

221423324121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74453 (or 74450 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 221423324121 its reverse (121423324122), we get a palindrome (342846648243).

Subtracting from 221423324121 its reverse (121423324122), we obtain a palindrome (99999999999).

The spelling of 221423324121 in words is "two hundred twenty-one billion, four hundred twenty-three million, three hundred twenty-four thousand, one hundred twenty-one".

Divisors: 1 3 9 41 123 369 9203 27609 65203 82827 195609 377323 586827 1131969 2673323 3395907 8019969 24059907 600063209 1800189627 5400568881 24602591569 73807774707 221423324121