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121201331322 = 23193972678009
BaseRepresentation
bin111000011100000101…
…0011000110001111010
3102120211201200120021010
41300320022120301322
53441210020100242
6131402405054350
711520324214041
oct1607012306172
9376751616233
10121201331322
1147445aa0125
121b5a60b73b6
13b5770567c6
145c1ab01558
1532456a589c
hex1c38298c7a

121201331322 has 32 divisors (see below), whose sum is σ = 255803515200. Its totient is φ = 38177682048.

The previous prime is 121201331297. The next prime is 121201331333. The reversal of 121201331322 is 223133102121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1293747 + ... + 1384262.

It is an arithmetic number, because the mean of its divisors is an integer number (7993859850).

Almost surely, 2121201331322 is an apocalyptic number.

121201331322 is an abundant number, since it is smaller than the sum of its proper divisors (134602183878).

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

121201331322 is a wasteful number, since it uses less digits than its factorization.

121201331322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678430.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121201331322 its reverse (223133102121), we get a palindrome (344334433443).

The spelling of 121201331322 in words is "one hundred twenty-one billion, two hundred one million, three hundred thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 19 38 57 114 397 794 1191 2382 7543 15086 22629 45258 2678009 5356018 8034027 16068054 50882171 101764342 152646513 305293026 1063169573 2126339146 3189508719 6379017438 20200221887 40400443774 60600665661 121201331322