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12202012110021 = 318713389641453
BaseRepresentation
bin1011000110010000000010…
…0110001110110011000101
31121012111112012111120100020
42301210000212032303011
53044404210100010041
641541305454405353
72366365143426336
oct261440046166305
947174465446306
1012202012110021
113984931804048
1214509b9200859
136a684c8361b6
1430281adcc28d
15162607d4a866
hexb190098ecc5

12202012110021 has 16 divisors (see below), whose sum is σ = 16282873601280. Its totient is φ = 8127915266240.

The previous prime is 12202012109993. The next prime is 12202012110047. The reversal of 12202012110021 is 12001121020221.

It is a cyclic number.

It is not a de Polignac number, because 12202012110021 - 26 = 12202012109957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202012120021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18701731 + ... + 19343183.

It is an arithmetic number, because the mean of its divisors is an integer number (1017679600080).

Almost surely, 212202012110021 is an apocalyptic number.

It is an amenable number.

12202012110021 is a deficient number, since it is larger than the sum of its proper divisors (4080861491259).

12202012110021 is a wasteful number, since it uses less digits than its factorization.

12202012110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646716.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12202012110021 its reverse (12001121020221), we get a palindrome (24203133130242).

The spelling of 12202012110021 in words is "twelve trillion, two hundred two billion, twelve million, one hundred ten thousand, twenty-one".

Divisors: 1 3 1871 3389 5613 10167 641453 1924359 6340819 19022457 1200158563 2173884217 3600475689 6521652651 4067337370007 12202012110021