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120021212293 is a prime number
BaseRepresentation
bin110111111000111010…
…0100101110010000101
3102110210111002022021221
41233301310211302011
53431300412243133
6131045331040341
711446144320553
oct1576164456205
9373714068257
10120021212293
114699a933244
121b316a400b1
13b419703518
145b480a8bd3
1531c6c95a2d
hex1bf1d25c85

120021212293 has 2 divisors, whose sum is σ = 120021212294. Its totient is φ = 120021212292.

The previous prime is 120021212191. The next prime is 120021212351. The reversal of 120021212293 is 392212120021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71250023329 + 48771188964 = 266927^2 + 220842^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021212293 - 217 = 120021081221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021212893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010606146 + 60010606147.

It is an arithmetic number, because the mean of its divisors is an integer number (60010606147).

Almost surely, 2120021212293 is an apocalyptic number.

It is an amenable number.

120021212293 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021212293 is an equidigital number, since it uses as much as digits as its factorization.

120021212293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 120021212293 in words is "one hundred twenty billion, twenty-one million, two hundred twelve thousand, two hundred ninety-three".