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122203230012 = 22341919851077
BaseRepresentation
bin111000111001111100…
…0010100111100111100
3102200102112221021220000
41301303320110330330
54000233011330022
6132050035154300
711554211213343
oct1616370247474
9380375837800
10122203230012
114790a5a0476
121b825745990
13b6a67a9c76
145cb3bc4b5a
1532a360e6ac
hex1c73e14f3c

122203230012 has 60 divisors (see below), whose sum is σ = 336277261320. Its totient is φ = 38590491744.

The previous prime is 122203230001. The next prime is 122203230047. The reversal of 122203230012 is 210032302221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9919383 + ... + 9931694.

It is an arithmetic number, because the mean of its divisors is an integer number (5604621022).

Almost surely, 2122203230012 is an apocalyptic number.

122203230012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122203230012 is an abundant number, since it is smaller than the sum of its proper divisors (214074031308).

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

122203230012 is a wasteful number, since it uses less digits than its factorization.

122203230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19851112 (or 19851101 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 122203230012 its reverse (210032302221), we get a palindrome (332235532233).

The spelling of 122203230012 in words is "one hundred twenty-two billion, two hundred three million, two hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 81 108 114 162 171 228 324 342 513 684 1026 1539 2052 3078 6156 19851077 39702154 59553231 79404308 119106462 178659693 238212924 357319386 377170463 535979079 714638772 754340926 1071958158 1131511389 1508681852 1607937237 2143916316 2263022778 3215874474 3394534167 4526045556 6431748948 6789068334 10183602501 13578136668 20367205002 30550807503 40734410004 61101615006 122203230012