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2221201312330 = 2571113475980021
BaseRepresentation
bin100000010100101001111…
…010100100101001001010
321212100022100010210102111
4200110221322210221022
5242343010013443310
64420223352452534
7316322303431210
oct40245172445112
97770270123374
102221201312330
11787008263810
122ba5979aa14a
131315c60c1a70
1479714608cb0
153cba28b728a
hex20529ea4a4a

2221201312330 has 256 divisors, whose sum is σ = 5575369605120. Its totient is φ = 614860876800.

The previous prime is 2221201312289. The next prime is 2221201312333. The reversal of 2221201312330 is 332131021222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2221201312333) 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 127 ways as a sum of consecutive naturals, for example, 27717720 + ... + 27797740.

It is an arithmetic number, because the mean of its divisors is an integer number (21778787520).

Almost surely, 22221201312330 is an apocalyptic number.

2221201312330 is an abundant number, since it is smaller than the sum of its proper divisors (3354168292790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221201312330 is a wasteful number, since it uses less digits than its factorization.

2221201312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80165.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2221201312330 its reverse (332131021222), we get a palindrome (2553332333552).

The spelling of 2221201312330 in words is "two trillion, two hundred twenty-one billion, two hundred one million, three hundred twelve thousand, three hundred thirty".