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12121102002 = 232020183667
BaseRepresentation
bin10110100100111100…
…10101011010110010
31011021201222210001210
423102132111122302
5144311000231002
65322433140550
7606241444542
oct132236253262
934251883053
1012121102002
115160056379
1224233ba756
1311b2286209
1482db43322
154ae1e296c
hex2d27956b2

12121102002 has 8 divisors (see below), whose sum is σ = 24242204016. Its totient is φ = 4040367332.

The previous prime is 12121101919. The next prime is 12121102033. The reversal of 12121102002 is 20020112121.

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

12121102002 is an admirable number.

It is a super-2 number, since 2×121211020022 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010091828 + ... + 1010091839.

It is an arithmetic number, because the mean of its divisors is an integer number (3030275502).

Almost surely, 212121102002 is an apocalyptic number.

12121102002 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.

12121102002 is a wasteful number, since it uses less digits than its factorization.

12121102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020183672.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12121102002 its reverse (20020112121), we get a palindrome (32141214123).

The spelling of 12121102002 in words is "twelve billion, one hundred twenty-one million, one hundred two thousand, two".

Divisors: 1 2 3 6 2020183667 4040367334 6060551001 12121102002