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2212212102012 = 2233114147966337
BaseRepresentation
bin100000001100010010000…
…111011101001101111100
321211111002212100121002000
4200030102013131031330
5242221102244231022
64412135354502300
7315553451416023
oct40142207351574
97744085317060
102212212102012
11783215071a80
122b88a9434990
131307c294b8c3
14791008018ba
153c82861c6ac
hex203121dd37c

2212212102012 has 192 divisors, whose sum is σ = 6545741690880. Its totient is φ = 640100966400.

The previous prime is 2212212101989. The next prime is 2212212102031. The reversal of 2212212102012 is 2102012122122.

It is a happy number.

2212212102012 is a `hidden beast` number, since 221 + 221 + 21 + 0 + 201 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1806108 + ... + 2772444.

It is an arithmetic number, because the mean of its divisors is an integer number (34092404640).

Almost surely, 22212212102012 is an apocalyptic number.

2212212102012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212212102012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3272870845440).

2212212102012 is an abundant number, since it is smaller than the sum of its proper divisors (4333529588868).

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

2212212102012 is a wasteful number, since it uses less digits than its factorization.

2212212102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966449 (or 966441 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2212212102012 its reverse (2102012122122), we get a palindrome (4314224224134).

The spelling of 2212212102012 in words is "two trillion, two hundred twelve billion, two hundred twelve million, one hundred two thousand, twelve".