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12010122012 = 2237142977643
BaseRepresentation
bin10110010111101101…
…11110101100011100
31011000000011102010210
423023312332230130
5144044042401022
65303430332420
7603423231660
oct131366765434
934000142123
1012010122012
115103445479
1223b21ba110
131195299a95
1481d0d48a0
154a45bea0c
hex2cbdbeb1c

12010122012 has 24 divisors (see below), whose sum is σ = 32026992256. Its totient is φ = 3431463408.

The previous prime is 12010121989. The next prime is 12010122023. The reversal of 12010122012 is 21022101021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71488738 + ... + 71488905.

Almost surely, 212010122012 is an apocalyptic number.

12010122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12010122012 is an abundant number, since it is smaller than the sum of its proper divisors (20016870244).

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

12010122012 is a wasteful number, since it uses less digits than its factorization.

12010122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142977657 (or 142977655 counting only the distinct ones).

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

Adding to 12010122012 its reverse (21022101021), we get a palindrome (33032223033).

The spelling of 12010122012 in words is "twelve billion, ten million, one hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 142977643 285955286 428932929 571910572 857865858 1000843501 1715731716 2001687002 3002530503 4003374004 6005061006 12010122012