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2223323023221 = 32404961011581
BaseRepresentation
bin100000010110101000011…
…000010000011101110101
321212112210012111212121100
4200112220120100131311
5242411331143220341
64421214104240313
7316426005611226
oct40265030203565
97775705455540
102223323023221
117879a6980593
122baa8a470099
131318738419b1
147987630724d
153cc78cbc3b6
hex205a8610775

2223323023221 has 12 divisors (see below), whose sum is σ = 3212259792300. Its totient is φ = 1481849255040.

The previous prime is 2223323023133. The next prime is 2223323023247. The reversal of 2223323023221 is 1223203233222.

2223323023221 is a `hidden beast` number, since 2 + 2 + 2 + 3 + 32 + 302 + 322 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 310326984900 + 1912996038321 = 557070^2 + 1383111^2 .

It is not a de Polignac number, because 2223323023221 - 211 = 2223323021173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223323023421) 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 11 ways as a sum of consecutive naturals, for example, 30469350 + ... + 30542231.

It is an arithmetic number, because the mean of its divisors is an integer number (267688316025).

Almost surely, 22223323023221 is an apocalyptic number.

It is an amenable number.

2223323023221 is a deficient number, since it is larger than the sum of its proper divisors (988936769079).

2223323023221 is a wasteful number, since it uses less digits than its factorization.

2223323023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61015636 (or 61015633 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 2223323023221 its reverse (1223203233222), we get a palindrome (3446526256443).

The spelling of 2223323023221 in words is "two trillion, two hundred twenty-three billion, three hundred twenty-three million, twenty-three thousand, two hundred twenty-one".

Divisors: 1 3 9 4049 12147 36441 61011581 183034743 549104229 247035891469 741107674407 2223323023221