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12203022020 = 2257701124343
BaseRepresentation
bin10110101110101101…
…10101011011000100
31011111110010202012112
423113112311123010
5144442433201040
65334521040152
7611254655450
oct132726653304
934443122175
1012203022020
1151a2319072
122446926058
1311c62394b7
1483a989660
154b64c5365
hex2d75b56c4

12203022020 has 48 divisors (see below), whose sum is σ = 29329267968. Its totient is φ = 4177891200.

The previous prime is 12203022011. The next prime is 12203022037. The reversal of 12203022020 is 2022030221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12203021986 and 12203022004.

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 15 ways as a sum of consecutive naturals, for example, 35969 + ... + 160311.

It is an arithmetic number, because the mean of its divisors is an integer number (611026416).

Almost surely, 212203022020 is an apocalyptic number.

12203022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203022020 is an abundant number, since it is smaller than the sum of its proper divisors (17126245948).

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

12203022020 is a wasteful number, since it uses less digits than its factorization.

12203022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125060 (or 125058 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 12203022020 its reverse (2022030221), we get a palindrome (14225052241).

The spelling of 12203022020 in words is "twelve billion, two hundred three million, twenty-two thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 701 1402 2804 3505 4907 7010 9814 14020 19628 24535 49070 98140 124343 248686 497372 621715 870401 1243430 1740802 2486860 3481604 4352005 8704010 17408020 87164443 174328886 348657772 435822215 610151101 871644430 1220302202 1743288860 2440604404 3050755505 6101511010 12203022020