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12213010332 = 2233179631751
BaseRepresentation
bin10110101111111001…
…11011111110011100
31011112010221012121000
423113330323332130
5200003012312312
65335515110300
7611435606055
oct132774737634
934463835530
1012213010332
1151a7a20476
12244a142390
1311c8325943
1483c02972c
154b72e9adc
hex2d7f3bf9c

12213010332 has 48 divisors (see below), whose sum is σ = 31840300800. Its totient is φ = 4048254000.

The previous prime is 12213010319. The next prime is 12213010333. The reversal of 12213010332 is 23301031221.

12213010332 is a `hidden beast` number, since 12 + 21 + 301 + 0 + 332 = 666.

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 (12213010333) 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, 296544 + ... + 335207.

It is an arithmetic number, because the mean of its divisors is an integer number (663339600).

Almost surely, 212213010332 is an apocalyptic number.

12213010332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12213010332 is an abundant number, since it is smaller than the sum of its proper divisors (19627290468).

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

12213010332 is a wasteful number, since it uses less digits than its factorization.

12213010332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631943 (or 631935 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12213010332 its reverse (23301031221), we get a palindrome (35514041553).

The spelling of 12213010332 in words is "twelve billion, two hundred thirteen million, ten thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 179 358 537 716 1074 1611 2148 3222 4833 6444 9666 19332 631751 1263502 1895253 2527004 3790506 5685759 7581012 11371518 17057277 22743036 34114554 68229108 113083429 226166858 339250287 452333716 678500574 1017750861 1357001148 2035501722 3053252583 4071003444 6106505166 12213010332