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122130331012 = 2253935661521
BaseRepresentation
bin111000110111110001…
…0001111010110000100
3102200020110202122021001
41301233202033112010
54000110331043022
6132034512503044
711552334453664
oct1615742172604
9380213678231
10122130331012
114788242a368
121b80524aa84
13b694664a71
145ca824a1a4
15329c00eb27
hex1c6f88f584

122130331012 has 12 divisors (see below), whose sum is σ = 213767747676. Its totient is φ = 61053831680.

The previous prime is 122130330877. The next prime is 122130331061. The reversal of 122130331012 is 210133031221.

It can be written as a sum of positive squares in 2 ways, for example, as 73644933376 + 48485397636 = 271376^2 + 220194^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2809189 + ... + 2852332.

It is an arithmetic number, because the mean of its divisors is an integer number (17813978973).

Almost surely, 2122130331012 is an apocalyptic number.

It is an amenable number.

122130331012 is a deficient number, since it is larger than the sum of its proper divisors (91637416664).

122130331012 is a wasteful number, since it uses less digits than its factorization.

122130331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5666918 (or 5666916 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 122130331012 its reverse (210133031221), we get a palindrome (332263362233).

The spelling of 122130331012 in words is "one hundred twenty-two billion, one hundred thirty million, three hundred thirty-one thousand, twelve".

Divisors: 1 2 4 5393 10786 21572 5661521 11323042 22646084 30532582753 61065165506 122130331012