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122200201220 = 22516993596239
BaseRepresentation
bin111000111001110110…
…0110001100000000100
3102200102100020102011112
41301303230301200010
54000231222414340
6132045450224152
711554143400136
oct1616354614004
9380370212145
10122200201220
1147908911939
121b824725058
13b6a5c89496
145cb3637056
1532a3212065
hex1c73b31804

122200201220 has 24 divisors (see below), whose sum is σ = 256771536000. Its totient is φ = 48851296992.

The previous prime is 122200201213. The next prime is 122200201231. The reversal of 122200201220 is 22102002221.

It is a junction number, because it is equal to n+sod(n) for n = 122200201195 and 122200201204.

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, 1764140 + ... + 1832099.

It is an arithmetic number, because the mean of its divisors is an integer number (10698814000).

Almost surely, 2122200201220 is an apocalyptic number.

122200201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122200201220 is an abundant number, since it is smaller than the sum of its proper divisors (134571334780).

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

122200201220 is a wasteful number, since it uses less digits than its factorization.

122200201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597947 (or 3597945 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122200201220 its reverse (22102002221), we get a palindrome (144302203441).

The spelling of 122200201220 in words is "one hundred twenty-two billion, two hundred million, two hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1699 3398 6796 8495 16990 33980 3596239 7192478 14384956 17981195 35962390 71924780 6110010061 12220020122 24440040244 30550050305 61100100610 122200201220