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122220002020 = 22535391726759
BaseRepresentation
bin111000111010011100…
…0010011101011100100
3102200110201111101202111
41301310320103223210
54000301310031040
6132051434450404
711554503606334
oct1616470235344
9380421441674
10122220002020
1147919006536
121b82b293a04
13b6aa10002c
145cb610d0c4
1532a4d23dea
hex1c74e13ae4

122220002020 has 24 divisors (see below), whose sum is σ = 256734676800. Its totient is φ = 48874158432.

The previous prime is 122220001993. The next prime is 122220002033. The reversal of 122220002020 is 20200022221.

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 7 ways as a sum of consecutive naturals, for example, 792600 + ... + 934159.

It is an arithmetic number, because the mean of its divisors is an integer number (10697278200).

Almost surely, 2122220002020 is an apocalyptic number.

122220002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220002020 is an abundant number, since it is smaller than the sum of its proper divisors (134514674780).

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

122220002020 is a wasteful number, since it uses less digits than its factorization.

122220002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730307 (or 1730305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 122220002020 its reverse (20200022221), we get a palindrome (142420024241).

The spelling of 122220002020 in words is "one hundred twenty-two billion, two hundred twenty million, two thousand, twenty".

Divisors: 1 2 4 5 10 20 3539 7078 14156 17695 35390 70780 1726759 3453518 6907036 8633795 17267590 34535180 6111000101 12222000202 24444000404 30555000505 61110001010 122220002020