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12212032020 = 2235203533867
BaseRepresentation
bin10110101111110010…
…01101001000010100
31011112002002111121020
423113321031020110
5200002240011040
65335442121140
7611424362616
oct132771151024
934462074536
1012212032020
1151a7412451
1224499501b0
1311c8072566
1483bc52db6
154b71a4cd0
hex2d7e4d214

12212032020 has 24 divisors (see below), whose sum is σ = 34193689824. Its totient is φ = 3256541856.

The previous prime is 12212032009. The next prime is 12212032031. The reversal of 12212032020 is 2023021221.

It is a happy number.

12212032020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12212032009) and next prime (12212032031).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101766874 + ... + 101766993.

It is an arithmetic number, because the mean of its divisors is an integer number (1424737076).

Almost surely, 212212032020 is an apocalyptic number.

12212032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212032020 is an abundant number, since it is smaller than the sum of its proper divisors (21981657804).

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

12212032020 is a wasteful number, since it uses less digits than its factorization.

12212032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203533879 (or 203533877 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12212032020 its reverse (2023021221), we get a palindrome (14235053241).

The spelling of 12212032020 in words is "twelve billion, two hundred twelve million, thirty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 203533867 407067734 610601601 814135468 1017669335 1221203202 2035338670 2442406404 3053008005 4070677340 6106016010 12212032020