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120021221330 = 2519076293719
BaseRepresentation
bin110111111000111010…
…0100111111111010010
3102110210111002202200122
41233301310213333102
53431300413040310
6131045331150242
711446144356113
oct1576164477722
9373714082618
10120021221330
114699a93a00a
121b316a45382
13b41970767a
145b480ac20a
1531c6c98555
hex1bf1d27fd2

120021221330 has 16 divisors (see below), whose sum is σ = 216151519680. Its totient is φ = 47983306032.

The previous prime is 120021221323. The next prime is 120021221339. The reversal of 120021221330 is 33122120021.

120021221330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 120021221299 and 120021221308.

It is not an unprimeable number, because it can be changed into a prime (120021221339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3127790 + ... + 3165929.

It is an arithmetic number, because the mean of its divisors is an integer number (13509469980).

Almost surely, 2120021221330 is an apocalyptic number.

120021221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120021221330 is a deficient number, since it is larger than the sum of its proper divisors (96130298350).

120021221330 is a wasteful number, since it uses less digits than its factorization.

120021221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6295633.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120021221330 its reverse (33122120021), we get a palindrome (153143341351).

The spelling of 120021221330 in words is "one hundred twenty billion, twenty-one million, two hundred twenty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 1907 3814 9535 19070 6293719 12587438 31468595 62937190 12002122133 24004244266 60010610665 120021221330