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122230302020 = 2258968668709
BaseRepresentation
bin111000111010101111…
…1100110010101000100
3102200111102212200200222
41301311133212111010
54000311424131040
6132052443323512
711554660265441
oct1616537462504
9380442780628
10122230302020
1147923901032
121b832820598
13b6ac2982c8
145cb76309c8
1532a5baabb5
hex1c757e6544

122230302020 has 24 divisors (see below), whose sum is σ = 259567723800. Its totient is φ = 48342770432.

The previous prime is 122230302017. The next prime is 122230302031. The reversal of 122230302020 is 20203032221.

It can be written as a sum of positive squares in 4 ways, for example, as 3459086596 + 118771215424 = 58814^2 + 344632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122230302020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34332575 + ... + 34336134.

It is an arithmetic number, because the mean of its divisors is an integer number (10815321825).

Almost surely, 2122230302020 is an apocalyptic number.

122230302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122230302020 is an abundant number, since it is smaller than the sum of its proper divisors (137337421780).

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

122230302020 is a wasteful number, since it uses less digits than its factorization.

122230302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68668807 (or 68668805 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 122230302020 its reverse (20203032221), we get a palindrome (142433334241).

The spelling of 122230302020 in words is "one hundred twenty-two billion, two hundred thirty million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 68668709 137337418 274674836 343343545 686687090 1373374180 6111515101 12223030202 24446060404 30557575505 61115151010 122230302020