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12212310132 = 22321137833491
BaseRepresentation
bin10110101111110100…
…10001000001110100
31011112002121122002200
423113322101001310
5200002322411012
65335452104500
7611426631501
oct132772210164
934462548080
1012212310132
1151a75923a0
122449a65130
1311c813c019
1483bcc64a8
154b720c3dc
hex2d7e91074

12212310132 has 72 divisors (see below), whose sum is σ = 34586584032. Its totient is φ = 3600676800.

The previous prime is 12212310107. The next prime is 12212310139. The reversal of 12212310132 is 23101321221.

12212310132 is a `hidden beast` number, since 1 + 221 + 2 + 310 + 132 = 666.

12212310132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212310139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 402094 + ... + 431397.

Almost surely, 212212310132 is an apocalyptic number.

12212310132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12212310132 is an abundant number, since it is smaller than the sum of its proper divisors (22374273900).

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

12212310132 is a wasteful number, since it uses less digits than its factorization.

12212310132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833549 (or 833544 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12212310132 its reverse (23101321221), we get a palindrome (35313631353).

The spelling of 12212310132 in words is "twelve billion, two hundred twelve million, three hundred ten thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 37 44 66 74 99 111 132 148 198 222 333 396 407 444 666 814 1221 1332 1628 2442 3663 4884 7326 14652 833491 1666982 2500473 3333964 5000946 7501419 9168401 10001892 15002838 18336802 27505203 30005676 30839167 36673604 55010406 61678334 82515609 92517501 110020812 123356668 165031218 185035002 277552503 330062436 339230837 370070004 555105006 678461674 1017692511 1110210012 1356923348 2035385022 3053077533 4070770044 6106155066 12212310132