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13021221202222 = 2173131223568991
BaseRepresentation
bin1011110101111011110101…
…0000111010100100101110
31201002211001021221022001011
42331132331100322210232
53201314430111432342
643405511052335434
72512516000010542
oct275367520724456
951084037838034
1013021221202222
1141702a59a7052
12156372477457a
13735b8536bbcc
14330332599a22
15178aa272a717
hexbd7bd43a92e

13021221202222 has 16 divisors (see below), whose sum is σ = 20746835828352. Its totient is φ = 6108056398080.

The previous prime is 13021221202201. The next prime is 13021221202259. The reversal of 13021221202222 is 22220212212031.

It is a happy number.

It is a super-3 number, since 3×130212212022223 (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13021221202193 and 13021221202202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611773854 + ... + 611795137.

It is an arithmetic number, because the mean of its divisors is an integer number (1296677239272).

Almost surely, 213021221202222 is an apocalyptic number.

13021221202222 is a deficient number, since it is larger than the sum of its proper divisors (7725614626130).

13021221202222 is a wasteful number, since it uses less digits than its factorization.

13021221202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223569323.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 13021221202222 its reverse (22220212212031), we get a palindrome (35241433414253).

The spelling of 13021221202222 in words is "thirteen trillion, twenty-one billion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-two".

Divisors: 1 2 17 34 313 626 5321 10642 1223568991 2447137982 20800672847 41601345694 382977094183 765954188366 6510610601111 13021221202222