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12210202220232 = 233618340302063
BaseRepresentation
bin1011000110101110100011…
…0001000001011011001000
31121020021122222122021102110
42301223220301001123020
53100022443232021412
641545142305102320
72400105123263562
oct261535061013310
947207588567373
1012210202220232
11398835491a075
1214525040279a0
136a755657cc63
14302d96a22332
15162936d99d3c
hexb1ae8c416c8

12210202220232 has 32 divisors (see below), whose sum is σ = 31025923678080. Its totient is φ = 4003344989760.

The previous prime is 12210202220149. The next prime is 12210202220239. The reversal of 12210202220232 is 23202220201221.

It is a junction number, because it is equal to n+sod(n) for n = 12210202220199 and 12210202220208.

It is not an unprimeable number, because it can be changed into a prime (12210202220239) 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, 4170149568 + ... + 4170152495.

It is an arithmetic number, because the mean of its divisors is an integer number (969560114940).

Almost surely, 212210202220232 is an apocalyptic number.

12210202220232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210202220232 is an abundant number, since it is smaller than the sum of its proper divisors (18815721457848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210202220232 is a wasteful number, since it uses less digits than its factorization.

12210202220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8340302133 (or 8340302129 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12210202220232 its reverse (23202220201221), we get a palindrome (35412422421453).

The spelling of 12210202220232 in words is "twelve trillion, two hundred ten billion, two hundred two million, two hundred twenty thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 61 122 183 244 366 488 732 1464 8340302063 16680604126 25020906189 33361208252 50041812378 66722416504 100083624756 200167249512 508758425843 1017516851686 1526275277529 2035033703372 3052550555058 4070067406744 6105101110116 12210202220232