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12010022020 = 225679792399
BaseRepresentation
bin10110010111101101…
…00110010010000100
31010222222222022222101
423023312212102010
5144044031201040
65303424241444
7603422334313
oct131366462204
933888868871
1012010022020
115103387337
1223b2170284
131195263409
1481d0aa27a
154a45a009a
hex2cbda6484

12010022020 has 48 divisors (see below), whose sum is σ = 25861651200. Its totient is φ = 4683469824.

The previous prime is 12010021997. The next prime is 12010022021. The reversal of 12010022020 is 2022001021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12010021988 and 12010022006.

It is not an unprimeable number, because it can be changed into a prime (12010022021) 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, 83781 + ... + 176179.

It is an arithmetic number, because the mean of its divisors is an integer number (538784400).

Almost surely, 212010022020 is an apocalyptic number.

12010022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010022020 is an abundant number, since it is smaller than the sum of its proper divisors (13851629180).

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

12010022020 is a wasteful number, since it uses less digits than its factorization.

12010022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92572 (or 92570 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12010022020 its reverse (2022001021), we get a palindrome (14032023041).

The spelling of 12010022020 in words is "twelve billion, ten million, twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 67 97 134 194 268 335 388 485 670 970 1340 1940 6499 12998 25996 32495 64990 92399 129980 184798 369596 461995 923990 1847980 6190733 8962703 12381466 17925406 24762932 30953665 35850812 44813515 61907330 89627030 123814660 179254060 600501101 1201002202 2402004404 3002505505 6005011010 12010022020