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221200111213 = 1076679309521
BaseRepresentation
bin1100111000000010001…
…1011101011001101101
3210010221211000220211121
43032000203131121231
512111004212024323
6245341250020541
721660354631264
oct3160043353155
9703854026747
10221200111213
11858a0772574
1236a53577751
1317b22529a93
14a9c59255db
155b4974da5d
hex33808dd66d

221200111213 has 8 divisors (see below), whose sum is σ = 223301551680. Its totient is φ = 219099303360.

The previous prime is 221200111201. The next prime is 221200111241. The reversal of 221200111213 is 312111002122.

221200111213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221200111213 - 29 = 221200110701 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 (221200118213) 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 7 ways as a sum of consecutive naturals, for example, 559893 + ... + 869413.

It is an arithmetic number, because the mean of its divisors is an integer number (27912693960).

Almost surely, 2221200111213 is an apocalyptic number.

It is an amenable number.

221200111213 is a deficient number, since it is larger than the sum of its proper divisors (2101440467).

221200111213 is a wasteful number, since it uses less digits than its factorization.

221200111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316307.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221200111213 its reverse (312111002122), we get a palindrome (533311113335).

The spelling of 221200111213 in words is "two hundred twenty-one billion, two hundred million, one hundred eleven thousand, two hundred thirteen".

Divisors: 1 107 6679 309521 714653 33118747 2067290759 221200111213