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12222202020220 = 225611110101011
BaseRepresentation
bin1011000111011011010000…
…0000101000000101111100
31121021102122021101021102001
42301312310000220011330
53100222032204121340
641554445130312044
72401011363015313
oct261666400500574
947242567337361
1012222202020220
113992452454445
1214548b2888624
136a871967471a
143037b45cb27a
15162dda5cb29a
hexb1db402817c

12222202020220 has 12 divisors (see below), whose sum is σ = 25666624242504. Its totient is φ = 4888880808080.

The previous prime is 12222202020191. The next prime is 12222202020239. The reversal of 12222202020220 is 2202020222221.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 305555050486 + ... + 305555050525.

It is an arithmetic number, because the mean of its divisors is an integer number (2138885353542).

Almost surely, 212222202020220 is an apocalyptic number.

12222202020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222202020220 is an abundant number, since it is smaller than the sum of its proper divisors (13444422222284).

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

12222202020220 is a wasteful number, since it uses less digits than its factorization.

12222202020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611110101020 (or 611110101018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 12222202020220 its reverse (2202020222221), we get a palindrome (14424222242441).

The spelling of 12222202020220 in words is "twelve trillion, two hundred twenty-two billion, two hundred two million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 611110101011 1222220202022 2444440404044 3055550505055 6111101010110 12222202020220