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221202230213 = 838929944799
BaseRepresentation
bin1100111000000010101…
…1100010101111000101
3210010221222000120120002
43032000223202233011
512111010232331323
6245341403251045
721660411635156
oct3160053425705
9703858016502
10221202230213
11858a198a608
1236a54219a85
1317b22abc423
14a9c5d1792d
155b49a1b828
hex3380ae2bc5

221202230213 has 8 divisors (see below), whose sum is σ = 226382688000. Its totient is φ = 216081662368.

The previous prime is 221202230089. The next prime is 221202230239. The reversal of 221202230213 is 312032202122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221202230213 - 226 = 221135121349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221202230273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14965013 + ... + 14979786.

It is an arithmetic number, because the mean of its divisors is an integer number (28297836000).

Almost surely, 2221202230213 is an apocalyptic number.

It is an amenable number.

221202230213 is a deficient number, since it is larger than the sum of its proper divisors (5180457787).

221202230213 is an equidigital number, since it uses as much as digits as its factorization.

221202230213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29944971.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221202230213 its reverse (312032202122), we get a palindrome (533234432335).

The spelling of 221202230213 in words is "two hundred twenty-one billion, two hundred two million, two hundred thirty thousand, two hundred thirteen".

Divisors: 1 83 89 7387 29944799 2485418317 2665087111 221202230213