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220212212002220 = 22513813979706749
BaseRepresentation
bin110010000100100000100110…
…101010111110110110101100
31001212201002012200102020110002
4302010200212222332312230
5212330424102233032340
62100204032115203432
764245543620523434
oct6204404652766654
91055632180366402
10220212212002220
11641915248335a9
12208467282a6578
1395b4bcb9238a9
143c54483ba92c4
151a6d359545715
hexc84826abedac

220212212002220 has 24 divisors (see below), whose sum is σ = 462448998690000. Its totient is φ = 88084246041792.

The previous prime is 220212212002219. The next prime is 220212212002243. The reversal of 220212212002220 is 22200212212022.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220212212002192 and 220212212002201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37090595 + ... + 42616154.

It is an arithmetic number, because the mean of its divisors is an integer number (19268708278750).

Almost surely, 2220212212002220 is an apocalyptic number.

220212212002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220212212002220 is an abundant number, since it is smaller than the sum of its proper divisors (242236786687780).

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

220212212002220 is a wasteful number, since it uses less digits than its factorization.

220212212002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79844897 (or 79844895 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 220212212002220 its reverse (22200212212022), we get a palindrome (242412424214242).

The spelling of 220212212002220 in words is "two hundred twenty trillion, two hundred twelve billion, two hundred twelve million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 138139 276278 552556 690695 1381390 2762780 79706749 159413498 318826996 398533745 797067490 1594134980 11010610600111 22021221200222 44042442400444 55053053000555 110106106001110 220212212002220