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2221201213230 = 235711042817471
BaseRepresentation
bin100000010100101001111…
…010001100011100101110
321212100022022221202111010
4200110221322030130232
5242343010002310410
64420223350410050
7316322302536246
oct40245172143456
97770268852433
102221201213230
117870081a630a
122ba597960926
131315c608891c
14797145c0b26
153cba2897c20
hex20529e8c72e

2221201213230 has 32 divisors (see below), whose sum is σ = 5405965774848. Its totient is φ = 583977783200.

The previous prime is 2221201213199. The next prime is 2221201213237. The reversal of 2221201213230 is 323121021222.

It is a junction number, because it is equal to n+sod(n) for n = 2221201213197 and 2221201213206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221201213237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521406606 + ... + 521410865.

It is an arithmetic number, because the mean of its divisors is an integer number (168936430464).

Almost surely, 22221201213230 is an apocalyptic number.

2221201213230 is an abundant number, since it is smaller than the sum of its proper divisors (3184764561618).

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

2221201213230 is a wasteful number, since it uses less digits than its factorization.

2221201213230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042817552.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2221201213230 its reverse (323121021222), we get a palindrome (2544322234452).

The spelling of 2221201213230 in words is "two trillion, two hundred twenty-one billion, two hundred one million, two hundred thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 1042817471 2085634942 3128452413 5214087355 6256904826 10428174710 15642262065 31284524130 74040040441 148080080882 222120121323 370200202205 444240242646 740400404410 1110600606615 2221201213230