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122501131012 = 221319793474523
BaseRepresentation
bin111001000010110100…
…0101110101100000100
3102201012022111020020101
41302011220232230010
54001340242143022
6132135400213444
711564456301361
oct1620550565404
9381168436211
10122501131012
1147a52770947
121b8a946a284
13b723421550
145d015ad468
1532be856627
hex1c85a2eb04

122501131012 has 96 divisors (see below), whose sum is σ = 246858393600. Its totient is φ = 52721165952.

The previous prime is 122501130989. The next prime is 122501131019. The reversal of 122501131012 is 210131105221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (122501131019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27081783 + ... + 27086305.

It is an arithmetic number, because the mean of its divisors is an integer number (2571441600).

Almost surely, 2122501131012 is an apocalyptic number.

It is an amenable number.

122501131012 is an abundant number, since it is smaller than the sum of its proper divisors (124357262588).

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

122501131012 is a wasteful number, since it uses less digits than its factorization.

122501131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985 (or 4983 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 122501131012 its reverse (210131105221), we get a palindrome (332632236233).

The spelling of 122501131012 in words is "one hundred twenty-two billion, five hundred one million, one hundred thirty-one thousand, twelve".

Divisors: 1 2 4 13 19 26 38 52 76 79 158 247 316 347 494 694 988 1027 1388 1501 2054 3002 4108 4511 4523 6004 6593 9022 9046 13186 18044 18092 19513 26372 27413 39026 54826 58799 78052 85709 85937 109652 117598 171418 171874 235196 342836 343748 356369 357317 520847 712738 714634 1041694 1117181 1425476 1429268 1569481 2083388 2234362 3138962 4468724 4645121 6277924 6771011 6789023 9290242 13542022 13578046 18580484 20403253 27084044 27156092 29820139 40806506 59640278 81613012 88257299 119280556 123988999 176514598 247977998 353029196 387661807 495955996 775323614 1550647228 1611856987 2355790981 3223713974 4711581962 6447427948 9423163924 30625282753 61250565506 122501131012