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122202012220 = 225171116132203
BaseRepresentation
bin111000111001111001…
…1101011101000111100
3102200102110122102101121
41301303303223220330
54000232203342340
6132045553120324
711554164652051
oct1616363535074
9380373572347
10122202012220
1147909939532
121b8252590a4
13b6a6471892
145cb3989028
1532a346d94a
hex1c73ceba3c

122202012220 has 48 divisors (see below), whose sum is σ = 271752552288. Its totient is φ = 45999912960.

The previous prime is 122202012193. The next prime is 122202012299. The reversal of 122202012220 is 22210202221.

It is a junction number, because it is equal to n+sod(n) for n = 122202012194 and 122202012203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3778639 + ... + 3810841.

It is an arithmetic number, because the mean of its divisors is an integer number (5661511506).

Almost surely, 2122202012220 is an apocalyptic number.

122202012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122202012220 is an abundant number, since it is smaller than the sum of its proper divisors (149550540068).

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

122202012220 is a wasteful number, since it uses less digits than its factorization.

122202012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43390 (or 43388 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 122202012220 its reverse (22210202221), we get a palindrome (144412214441).

The spelling of 122202012220 in words is "one hundred twenty-two billion, two hundred two million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 11161 22322 32203 44644 55805 64406 111610 128812 161015 189737 223220 322030 379474 547451 644060 758948 948685 1094902 1897370 2189804 2737255 3794740 5474510 10949020 359417683 718835366 1437670732 1797088415 3594176830 6110100611 7188353660 12220201222 24440402444 30550503055 61101006110 122202012220