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1212212010 = 235233674787
BaseRepresentation
bin100100001000000…
…1110001100101010
310010110222202021010
41020100032030222
54440311241020
6320141524350
742016426542
oct11020161452
93113882233
101212212010
11572297909
12299b736b6
131641abb19
14b6dcc322
157164dde0
hex4840e32a

1212212010 has 64 divisors (see below), whose sum is σ = 3044708352. Its totient is φ = 308294976.

The previous prime is 1212211991. The next prime is 1212212059. The reversal of 1212212010 is 102122121.

1212212010 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250837 + ... + 255623.

It is an arithmetic number, because the mean of its divisors is an integer number (47573568).

Almost surely, 21212212010 is an apocalyptic number.

1212212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212212010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1522354176).

1212212010 is an abundant number, since it is smaller than the sum of its proper divisors (1832496342).

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

1212212010 is a wasteful number, since it uses less digits than its factorization.

1212212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187.

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

The square root of 1212212010 is about 34816.8351519778. The cubic root of 1212212010 is about 1066.2511866021.

Adding to 1212212010 its reverse (102122121), we get a palindrome (1314334131).

The spelling of 1212212010 in words is "one billion, two hundred twelve million, two hundred twelve thousand, ten".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 367 690 734 1101 1835 2202 3670 4787 5505 8441 9574 11010 14361 16882 23935 25323 28722 42205 47870 50646 71805 84410 110101 126615 143610 220202 253230 330303 550505 660606 1101010 1651515 1756829 3303030 3513658 5270487 8784145 10540974 17568290 26352435 40407067 52704870 80814134 121221201 202035335 242442402 404070670 606106005 1212212010