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1212001110010 = 252812137201833
BaseRepresentation
bin10001101000110000111…
…001010100011111111010
311021212101102220122222101
4101220300321110133322
5124324134241010020
62324441410014014
7153364342311655
oct21506071243772
94255342818871
101212001110010
11428009036729
12176a8887730a
138a3a2a4a832
144293835489c
15217d85ca00a
hex11a30e547fa

1212001110010 has 32 divisors (see below), whose sum is σ = 2190401062992. Its totient is φ = 482846730240.

The previous prime is 1212001110007. The next prime is 1212001110013. The reversal of 1212001110010 is 100111002121.

It is an interprime number because it is at equal distance from previous prime (1212001110007) and next prime (1212001110013).

It can be written as a sum of positive squares in 8 ways, for example, as 30460371841 + 1181540738169 = 174529^2 + 1086987^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1212001110013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5904054 + ... + 6105886.

Almost surely, 21212001110010 is an apocalyptic number.

1212001110010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212001110010 is a deficient number, since it is larger than the sum of its proper divisors (978399952982).

1212001110010 is a wasteful number, since it uses less digits than its factorization.

1212001110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204258.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1212001110010 its reverse (100111002121), we get a palindrome (1312112112131).

The spelling of 1212001110010 in words is "one trillion, two hundred twelve billion, one million, one hundred ten thousand, ten".

Divisors: 1 2 5 10 281 562 1405 2137 2810 4274 10685 21370 201833 403666 600497 1009165 1200994 2018330 3002485 6004970 56715073 113430146 283575365 431317121 567150730 862634242 2156585605 4313171210 121200111001 242400222002 606000555005 1212001110010