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BaseRepresentation
bin111111010001101…
…1010011000101010
312110222012100202201
41332203122120222
513322020243310
6550403450414
7103421002261
oct17643323052
95428170681
102123212330
1199a552938
124b3086a0a
1327ab57475
15c65eee3a
hex7e8da62a

2123212330 has 32 divisors (see below), whose sum is σ = 3900441600. Its totient is φ = 831859392.

The previous prime is 2123212319. The next prime is 2123212337. The reversal of 2123212330 is 332123212.

Adding to 2123212330 its reverse (332123212), we get a palindrome (2455335542).

It is a junction number, because it is equal to n+sod(n) for n = 2123212298 and 2123212307.

It is not an unprimeable number, because it can be changed into a prime (2123212337) 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 15 ways as a sum of consecutive naturals, for example, 346231 + ... + 352309.

It is an arithmetic number, because the mean of its divisors is an integer number (121888800).

Almost surely, 22123212330 is an apocalyptic number.

2123212330 is a deficient number, since it is larger than the sum of its proper divisors (1777229270).

2123212330 is a wasteful number, since it uses less digits than its factorization.

2123212330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2123212330 is about 46078.3282031803. The cubic root of 2123212330 is about 1285.2801763065.

The spelling of 2123212330 in words is "two billion, one hundred twenty-three million, two hundred twelve thousand, three hundred thirty".