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12202011112221 = 327439981440207
BaseRepresentation
bin1011000110010000000010…
…0010011011001100011101
31121012111112010121212121200
42301210000202123030131
53044404204321042341
641541305421150113
72366365132102320
oct261440042331435
947174463555550
1012202011112221
113984931192417
1214509b89bb339
136a684c576c98
1430281ac0c7b7
15162607beedb6
hexb190089b31d

12202011112221 has 24 divisors (see below), whose sum is σ = 20143094010624. Its totient is φ = 6972546091680.

The previous prime is 12202011112219. The next prime is 12202011112241. The reversal of 12202011112221 is 12221111020221.

12202011112221 is a `hidden beast` number, since 1 + 220 + 201 + 11 + 12 + 221 = 666.

It is not a de Polignac number, because 12202011112221 - 21 = 12202011112219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12202011112194 and 12202011112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202011112241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27498700 + ... + 27938906.

It is an arithmetic number, because the mean of its divisors is an integer number (839295583776).

Almost surely, 212202011112221 is an apocalyptic number.

It is an amenable number.

12202011112221 is a deficient number, since it is larger than the sum of its proper divisors (7941082898403).

12202011112221 is a wasteful number, since it uses less digits than its factorization.

12202011112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880201 (or 880198 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12202011112221 its reverse (12221111020221), we get a palindrome (24423122132442).

The spelling of 12202011112221 in words is "twelve trillion, two hundred two billion, eleven million, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 7 9 21 63 439981 440207 1319943 1320621 3079867 3081449 3959829 3961863 9239601 9244347 27718803 27733041 193682716067 581048148201 1355779012469 1743144444603 4067337037407 12202011112221