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1212210202008 = 2331324110172173
BaseRepresentation
bin10001101000111101010…
…110111100010110011000
311021212221000100122021110
4101220331112330112120
5124330101302431013
62324514235340320
7153402461464431
oct21507526742630
94255830318243
101212210202008
11428106069633
12176b268b16a0
138a407169300
1442958022488
15217ebb2d2c3
hex11a3d5bc598

1212210202008 has 192 divisors, whose sum is σ = 3394943707680. Its totient is φ = 360282624000.

The previous prime is 1212210202001. The next prime is 1212210202009. The reversal of 1212210202008 is 8002020122121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210202001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16759810 + ... + 16831982.

Almost surely, 21212210202008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212210202008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1697471853840).

1212210202008 is an abundant number, since it is smaller than the sum of its proper divisors (2182733505672).

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

1212210202008 is a wasteful number, since it uses less digits than its factorization.

1212210202008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72350 (or 72333 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1212210202008 its reverse (8002020122121), we get a palindrome (9214230324129).

The spelling of 1212210202008 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred two thousand, eight".