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12002211222 = 232000368537
BaseRepresentation
bin10110010110110001…
…10011010110010110
31010222110021111120120
423023120303112112
5144040031224342
65302545012410
7603266053311
oct131330632626
933873244516
1012002211222
1150a9a31a31
1223ab624106
13119375a141
1481c035978
154a3a5aaec
hex2cb633596

12002211222 has 8 divisors (see below), whose sum is σ = 24004422456. Its totient is φ = 4000737072.

The previous prime is 12002211217. The next prime is 12002211229. The reversal of 12002211222 is 22211220021.

It is a sphenic number, since it is the product of 3 distinct primes.

12002211222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002211229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000184263 + ... + 1000184274.

It is an arithmetic number, because the mean of its divisors is an integer number (3000552807).

Almost surely, 212002211222 is an apocalyptic number.

12002211222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12002211222 is a wasteful number, since it uses less digits than its factorization.

12002211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000368542.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12002211222 its reverse (22211220021), we get a palindrome (34213431243).

The spelling of 12002211222 in words is "twelve billion, two million, two hundred eleven thousand, two hundred twenty-two".

Divisors: 1 2 3 6 2000368537 4000737074 6001105611 12002211222